Side by side

CFast versus CFexpress Type B

SATA CFast is not PCIe/NVMe CFexpress. Check the full card and reader names before checking performance.

Computer-generated illustration, not a photograph. — P120 · ConnectorCFast card interface

How they differ

CFast card interface Read CFast on the card and confirm the same family in the camera and reader manuals. Avoid identifying a slot by width alone.
CFexpress Type B card interface Read Type B on the card and the exact supported-media list; record the camera firmware requirement where one is given.

At a glance

Source-scoped form facts; counts, variants and unknowns are distinct
Field	CFast card interface	CFexpress Type B card interface
Type	Connector	Connector
Family	Storage	Storage
Shape	card edge	card edge
Nominal contacts	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Positions / cavity span	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact rows	1 (3M N7G24-A0B2RA-00-0HT)S985Current primary-source scoped values; named examples remain separate and unknowns are not inferred from illustrations. Exact 3M N7G24-A0B2RA-00-0HT CFast host plug for Type I/II cards; explicit Number of Contact Rows property only. Quantity context: Manufacturer Number of Contact Rows.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Connector role	card (TS32GCFX722I)S921Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TS32GCFX722I. Documented role: card. Exact CFX722I card family, not CFexpress or CompactFlash despite similar outer envelope.; Current full official PDF captured; filename202404 is not asserted as an internal publication date. No contact pitch inferred.	card (CEB-G128)S098Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. CEB-G128. Documented role: card. Approximate dimensions of named CEB-G models. No XQD electrical compatibility inferred merely from shared physical form.
Key distinction	CFast is not an abbreviated name for CFexpress.	Same shell is not the same supported media.

Full evidence ledger and sources ↓

Illustrations are computer-generated with prior AI visual review; independent technical and rights review pending. A comparison is not a compatibility verdict.

This comparison stays within one evidence layer.

All selected records are Connector records. Similar layer does not mean compatible, interchangeable or safe to mate.

Families represented: Storage

Look here first

Spot the difference.

Read the views →

Not a size comparison. Illustrations fit the same display boxes; their physical dimensions are not shown to a common scale. No mating or compatibility verdict follows.

P120 / Label-led card symbol

CFast card interface

Card symbol; interface face not shown

Label-led symbol — not interface geometry. Read the exact designation and written reference; do not identify a physical connector by this generic shape.

Label cue: Read CFast in the written label

Do not interpret the dark strip as a validated connector end.

Still check: This is not a SATA contact-end drawing; the family name is not interchangeable with CFexpress.

CFexpress Type B: original nominal width by height envelope study, 29.6 by 38.5 mm, 3.8 mm nominal depth. Not a contact or key drawing; no host compatibility approval.

P122 / Label-led card symbol

CFexpress Type B card interface

Card symbol; interface face not shown

Label-led symbol — not interface geometry. Read the exact designation and written reference; do not identify a physical connector by this generic shape.

Label cue: Read CFexpress Type B and the exact supported-media list

The dark strip is not the card contact arrangement.

Still check: A shared form with XQD does not establish that a camera or reader supports either format.

The reference ledger

Read the same question across.

2 selected records · 15 fields
No score. No compatibility verdict.

On a narrow screen, scroll the table sideways or open the field-by-field reading view below. Illustrations are not a size comparison.

Comparison of selected field notes; source links accompany each documented specification
What you are comparing	P120 / ConnectorCFast card interface Identification schematic · not to scale · drawing review pending	P122 / ConnectorCFexpress Type B card interface Identification schematic · not to scale · drawing review pending
Layer	Connector	Connector
Key distinction	CFast is not an abbreviated name for CFexpress.	Same shell is not the same supported media.
Nominal contacts	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Positions / cavity span	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Populated contacts	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact rows	1 (3M N7G24-A0B2RA-00-0HT)S985Current primary-source scoped values; named examples remain separate and unknowns are not inferred from illustrations. Exact 3M N7G24-A0B2RA-00-0HT CFast host plug for Type I/II cards; explicit Number of Contact Rows property only. Quantity context: Manufacturer Number of Contact Rows.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact pitch	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Dimensions / axis	42.8 ± 0.1 mm overall horizontal span in published broad-face drawing (TS32GCFX722I); 36.4 ± 0.15 mm overall vertical span in published broad-face drawing (TS32GCFX722I); 3.3 ± 0.1 mm overall thickness in published side view (TS32GCFX722I)S921Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TS32GCFX722I. Documented role: card. Exact CFX722I card family, not CFexpress or CompactFlash despite similar outer envelope.; Current full official PDF captured; filename202404 is not asserted as an internal publication date. No contact pitch inferred.	29.6 mm approximate overall width (CEB-G128); 38.5 mm approximate overall length (CEB-G128); 3.8 mm approximate overall thickness (CEB-G128)S098Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. CEB-G128. Documented role: card. Approximate dimensions of named CEB-G models. No XQD electrical compatibility inferred merely from shared physical form.
Connector role	card (TS32GCFX722I)S921Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TS32GCFX722I. Documented role: card. Exact CFX722I card family, not CFexpress or CompactFlash despite similar outer envelope.; Current full official PDF captured; filename202404 is not asserted as an internal publication date. No contact pitch inferred.	card (CEB-G128)S098Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. CEB-G128. Documented role: card. Approximate dimensions of named CEB-G models. No XQD electrical compatibility inferred merely from shared physical form.
Coupling / latch	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Keying / polarization	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Documented identification	The CompactFlash Association identifies CFast as a Serial ATA card family.C120A	The CompactFlash Association states that Type B and XQD share a form factor and connector, with camera support conditional on implementation.C122A
Important distinction	The same association lists CompactFlash and CFexpress as separate card standards.C120B	Sony labels its CEB-G card examples CFexpress Type B with a PCI Express interface.C122B
Documented distinction	Not an equivalent field	CFA describes CFexpress Type B as using two PCIe lanes and retaining the same dimensions and connector as XQD. It separately makes camera support conditional on implementation or a manufacturer update.C122C
Evidence	C120A,C120B,C120C,C120W → Independent review pending	C122A,C122B,C122C,C122D → Independent review pending

Read field by field — no sideways scrolling

The same selected records, fields, values and source links as the table. Missing fields remain non-equivalent; no values are merged.

Layer

CFast card interfaceP120 / Connector: Connector
CFexpress Type B card interfaceP122 / Connector: Connector

Key distinction

CFast card interfaceP120 / Connector: CFast is not an abbreviated name for CFexpress.
CFexpress Type B card interfaceP122 / Connector: Same shell is not the same supported media.

Nominal contacts

CFast card interfaceP120 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
CFexpress Type B card interfaceP122 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Positions / cavity span

CFast card interfaceP120 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
CFexpress Type B card interfaceP122 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Populated contacts

CFast card interfaceP120 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
CFexpress Type B card interfaceP122 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact rows

CFast card interfaceP120 / Connector: 1 (3M N7G24-A0B2RA-00-0HT)S985Current primary-source scoped values; named examples remain separate and unknowns are not inferred from illustrations. Exact 3M N7G24-A0B2RA-00-0HT CFast host plug for Type I/II cards; explicit Number of Contact Rows property only. Quantity context: Manufacturer Number of Contact Rows.
CFexpress Type B card interfaceP122 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact pitch

CFast card interfaceP120 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
CFexpress Type B card interfaceP122 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Dimensions / axis

CFast card interfaceP120 / Connector: 42.8 ± 0.1 mm overall horizontal span in published broad-face drawing (TS32GCFX722I); 36.4 ± 0.15 mm overall vertical span in published broad-face drawing (TS32GCFX722I); 3.3 ± 0.1 mm overall thickness in published side view (TS32GCFX722I)S921Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TS32GCFX722I. Documented role: card. Exact CFX722I card family, not CFexpress or CompactFlash despite similar outer envelope.; Current full official PDF captured; filename202404 is not asserted as an internal publication date. No contact pitch inferred.
CFexpress Type B card interfaceP122 / Connector: 29.6 mm approximate overall width (CEB-G128); 38.5 mm approximate overall length (CEB-G128); 3.8 mm approximate overall thickness (CEB-G128)S098Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. CEB-G128. Documented role: card. Approximate dimensions of named CEB-G models. No XQD electrical compatibility inferred merely from shared physical form.

Connector role

CFast card interfaceP120 / Connector: card (TS32GCFX722I)S921Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TS32GCFX722I. Documented role: card. Exact CFX722I card family, not CFexpress or CompactFlash despite similar outer envelope.; Current full official PDF captured; filename202404 is not asserted as an internal publication date. No contact pitch inferred.
CFexpress Type B card interfaceP122 / Connector: card (CEB-G128)S098Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. CEB-G128. Documented role: card. Approximate dimensions of named CEB-G models. No XQD electrical compatibility inferred merely from shared physical form.

Coupling / latch

CFast card interfaceP120 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
CFexpress Type B card interfaceP122 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Keying / polarization

CFast card interfaceP120 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
CFexpress Type B card interfaceP122 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Documented identification

CFast card interfaceP120 / Connector: The CompactFlash Association identifies CFast as a Serial ATA card family.C120A
CFexpress Type B card interfaceP122 / Connector: The CompactFlash Association states that Type B and XQD share a form factor and connector, with camera support conditional on implementation.C122A

Important distinction

CFast card interfaceP120 / Connector: The same association lists CompactFlash and CFexpress as separate card standards.C120B
CFexpress Type B card interfaceP122 / Connector: Sony labels its CEB-G card examples CFexpress Type B with a PCI Express interface.C122B

Documented distinction

CFast card interfaceP120 / Connector: Not an equivalent field
CFexpress Type B card interfaceP122 / Connector: CFA describes CFexpress Type B as using two PCIe lanes and retaining the same dimensions and connector as XQD. It separately makes camera support conditional on implementation or a manufacturer update.C122C

Evidence

CFast card interfaceP120 / Connector: C120A,C120B,C120C,C120W →
Independent review pending
CFexpress Type B card interfaceP122 / Connector: C122A,C122B,C122C,C122D →
Independent review pending

Your next step

Use the distinction in context.

Open the field notes Read source-linked facts and limitations.Compare another pair Start from a common confusion.Check a connection A comparison is not a compatibility verdict.

Continue the distinction

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CFexpress Type A versus Type BRecord the type letter and supported reader, not just the family name.CompactFlash versus CFastSimilar names refer to different card families.CompactFlash versus CFexpress Type BPATA CompactFlash and PCIe/NVMe CFexpress are different card families; a CF reader label is incomplete.XQD versus CFexpress Type BA shared form factor does not establish device or firmware support.Mini-SAS HD vs OCuLinkMini-SAS HD and OCuLink are different connector families used in high-speed internal links. Physical resemblance is not evidence of mating or protocol compatibility.Mini-SAS HD vs SlimSASMini-SAS HD and SlimSAS are different internal high-density connector families. Match the named SFF form and system documentation, not the general SAS label.

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Evidence behind this page

Scope first. Source second. Approval separate.

5 linked sources · 8 scoped claims · 0 sources with inspection/access flags.

Page scope: Evidence behind the compared records; the editorial comparison still needs separate review.

Assessment 2026-10-22 · earliest scheduled source review 2027-01-01. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 5 source scopes, access limits and dates

S096 · Card types and form-factor distinctions

CompactFlash Association · Standards-organization domain · inspected 2026-10-03 · due 2027-01-01

Within inspection window

Scoped support: CF uses PATA; CFast uses SATA; CFexpress uses PCIe/NVMe; Type B and XQD share a form factor but camera support is conditional.

Not established / limitations: No copied tables, logos, numeric throughput promises, exhaustive market status or licensed normative specification. Text-only scope.

Locator: CFexpress Form Factors; Type A versus Type B; Legacy Standards

S098 · CFexpress Type B CEB-G support — interface identity

Sony · Manufacturer / product-owner domain · inspected 2026-10-03 · due 2027-01-01

Within inspection window

Scoped support: Sony CEB-G examples explicitly identify CFexpress Type B and PCI Express.

Not established / limitations: Japanese primary text inspected. Model-specific performance and dimensions are not transferred to every card.

Locator: CEB-G product information; interface row

S495 · MRW-G1 CFexpress Type B / XQD reader supported cards

Sony · Unclassified publisher domain · inspected 2026-10-11 · due 2027-01-09

Within inspection window

Scoped support: Named reader support only, not all XQD readers, all camera slots or all brands.

Not established / limitations: Named example only. No universal compatibility or publication approval. Raw-byte acquisition status is recorded separately.

Locator: Product description and FAQ: supported Sony CFexpress Type B and Sony XQD G/M series cards.

S641 · FAQs About the Industrial CFast Card — interface distinction

Delkin Devices · Unclassified publisher domain · inspected 2026-10-14 · due 2027-01-12

Within inspection window

Scoped support: Manufacturer explanation identifying a 24-pin SATA connector/interface for industrial CFast.

Not established / limitations: Only interface/contact-count distinction adopted. No precise dimensions, universal flash technology, uptime, security, speed or card/device compatibility claims adopted.

Locator: Article dated 2022-05-06; What is the difference between CF and CFast?

S985 · 3M CFast connector N7G24-A0B2RA-00-0HT specification

3M · Unclassified publisher domain · inspected 2026-10-22 · due 2027-01-20

Within inspection window

Scoped support: ExactN7G24-A0B2RA-00-0HT host plug contact-row property only.

Not established / limitations: Contact rows is the explicit manufacturer property; PCB tail description kept separate. No pitch transferred from Kingconn or other3M part; TypeI/II host acceptance is not a CFast-to-CF compatibility approval.

Locator: Full exact part page: NumberofContacts24,ConnectorStylePlug,Number of Contact Rows1,CardTypeI/II. TS2329 technicalPDF link retrieved as text-reference only; direct acquisition403, no drawing pixels claimed.

Trace 8 claims to their source records

C120A · P120

The CompactFlash Association identifies CFast as a Serial ATA card family.

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval

Source links: S096 · Evidence trail → (private workspace)

C120B · P120

The same association lists CompactFlash and CFexpress as separate card standards.

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval

Source links: S096 · Evidence trail → (private workspace)

C120C · P120

Delkin identifies a 24-pin SATA connector and SATA interface as a distinction of its industrial CFast description.

Claim scope: Manufacturer interface-identification passage only. No pin assignment, exact mating dimensions or card-reader support inferred.

Source links: S641 · Evidence trail → (private workspace)

C120W · P120

3M specifies N7G24-A0B2RA-00-0HT as a 24-contact CFast host plug with one contact row. The source separately describes its single-row SMT solder tails.

Claim scope: Exact 3M N7G24-A0B2RA-00-0HT CFast host plug for Type I/II cards; explicit Number of Contact Rows property only.

Source links: S985 · Evidence trail → (private workspace)

C122A · P122

The CompactFlash Association states that Type B and XQD share a form factor and connector, with camera support conditional on implementation.

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval

Source links: S096 · Evidence trail → (private workspace)

C122B · P122

Sony labels its CEB-G card examples CFexpress Type B with a PCI Express interface.

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval

Source links: S098 · Evidence trail → (private workspace)

C122C · P122

CFA describes CFexpress Type B as using two PCIe lanes and retaining the same dimensions and connector as XQD. It separately makes camera support conditional on implementation or a manufacturer update.

Claim scope: Card Types public text: form-factor footnote and A/B FAQ; no dimensions or speed table transcribed.

Source links: S096 · Evidence trail → (private workspace)

C122D · P122

Sony lists its CFexpress Type B memory cards for the MRW-G1 reader.

Claim scope: Sony MRW-G1 and the specified Sony card family only. No camera or other reader approval.

Source links: S495 · Evidence trail → (private workspace)

Prepare this page for review →Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.