FIELD GUIDESource-led reference
Port & Cable

P120 / Storage / Connector

CFast card interface

CFast is a SATA-based removable-card family, distinct from PATA CompactFlash and PCIe-based CFexpress.

Also called CFast 2.0 CFast card CFast 1.1

CFast is not an abbreviated name for CFexpress.

Look for

Read CFast on the card and confirm the same family in the camera and reader manuals. Avoid identifying a slot by width alone.

Claim inspection dates: 2026-10-03, 2026-10-14, 2026-10-22 · Independent review pending

CFast card interface: three-quarter view. Computer-generated illustration, not a photograph.

Three-quarter view Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.

CFast card interface: mating face. Computer-generated illustration, not a photograph.

Mating face Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.

CFast card interface: fitted in place. Computer-generated illustration, not a photograph.

Fitted in place Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.

CFast card interface: original recognition drawing, not to scale.

Recognition drawing Original schematic, not to scale. Drawing review pending.

Application notes / Camera media / P120

Is CFast just a faster CompactFlash card?

FIELD NOTES 04

No: treat CFast as a separate card interface, not a speed grade of CompactFlash. Its documented contact interface must be matched to an explicitly supported reader. C120A · C120C · C119B

Cable or component: documented role and remaining check
CheckDocumented distinctionWhat this does not establish
CFast interfaceDelkin describes industrial CFast with a 24-pin SATA connector. C120CThis is not a pin assignment, a 7+17 breakdown or an exact mating drawing.
CompactFlash contrastThe existing CompactFlash record identifies PATA and a documented 50-pin Type I card. C119A · C119BThe similar family name is not evidence that the CFast card fits or is supported.
Reader declarationThe existing RDF8 sheets name CompactFlash UDMA7, not CFast support. C119CAbsence from these checked sections remains insufficient evidence, not a new manufacturer prohibition or hardware test.
Read the part and the device.
The printed CFast name matters more than a similar rectangular outline.
Keep this requirement open.
No CFast support is established by an RDF8 CompactFlash-only listing.

Not established · named example only

Does RDF8’s CompactFlash listing prove CFast support?

Unknown from that listing: the formats are separate and CFast support is not established.

Boundary. This is insufficient evidence, not a hardware test or explicit manufacturer prohibition.

Next check. Obtain an explicit CFast-supported reader specification.

S439 · S440 · S096 · C119C (private workspace) · C120A (private workspace) · C119B (private workspace)

Before choosing an adapter or reader

  1. Read the CFast generation and exact card model.
  2. Find an explicit CFast reader entry.
  3. Check camera-approved cards and modes independently of reader support.

Source scope · 14 October 2026. New Delkin interface passage checked; existing RDF8/CompactFlash claims retain their original dates. The inaccessible Transcend 7+17 FAQ is not adopted.

Source-qualified reference, not a pinout, compatibility verdict or installation approval. New claims have separate dates; inherited claim dates and review status remain unchanged. No independent technical or rights approval is implied.

Source trail: S096 · S641 · S847 · S439 · S440.

CompactFlash Type I card interface

Read the evidence and its scope · 4 observations

C120A (private workspace) — The CompactFlash Association identifies CFast as a Serial ATA card family.

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

S096

C120B (private workspace) — The same association lists CompactFlash and CFexpress as separate card standards.

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

S096

C119B (private workspace) — The CompactFlash Association identifies CompactFlash with the PATA interface.

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

S096

C119C (private workspace) — The RDF8 sheets list CompactFlash UDMA7 separately from SD and microSD UHS-I. The named TS-RDF8K2 / TS-RDF8W2 reader examples do not establish CFast or CFexpress support.

Both sheets PDF page 2 Compatibility and Ordering Information; no Type I/II thickness or electrical assignment adopted.

S439 · S440

Source interpretation is not independent engineering review, hardware testing, wiring advice or a public-release approval.

Inspect the illustrationLabel-led card symbol · larger view & look-alikes
CFast card interface — label-led card symbol; card symbol; interface face not shown; label-led symbol, not interface geometry; original, not-to-scale identification schematic; drawing review pending
View Label-led card symbolDepiction Card symbol; interface face not shownSymbol only — not interface geometryNot to scale · independent drawing review pending

Read the view

Read CFast in the written label

The label is above a generic dark strip. No card insertion orientation follows from that placement.

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

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

What it cannot establish: This is not a SATA contact-end drawing; the family name is not interchangeable with CFexpress.

Enlargement changes display size only. It does not reveal measured geometry, a pin assignment or an approved mating combination.

Compare a likely look-alike

CompactFlash Type I card interface →CFexpress Type B card interface →

Read the underlying references: S096. Artwork interpretation remains review-pending.

How to read connector illustrations →

The useful distinction

Recognize it. Then verify it.

CFast is a SATA-based removable-card family, distinct from PATA CompactFlash and PCIe-based CFexpress. [C120A]

The same association lists CompactFlash and CFexpress as separate card standards. [C120B]

Delkin identifies a 24-pin SATA connector and SATA interface as a distinction of its industrial CFast description. [C120C]

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. [C120W]

Source-scoped identification facts

Each value retains its exact example, role and measurement axis. Facts from different parts must not be combined into an invented component.

Documented examples; not a mating drawing or compatibility approval
Contact rows1 (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.
Dimensions / axis42.8 ± 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.
Connector rolecard (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.
ManufacturerTranscend (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.
SeriesCFX722I (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.
Exact part / implementationTS32GCFX722I (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.
View conventionPublished broad-face outline and adjacent side view; source does not establish numbered contact face. (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.

Not recorded: Nominal contacts, Positions / cavity span, Populated contacts, Contact pitch, Contact gender / arrangement, Mounting, Coupling / latch, Keying / polarization, Shell / form, Recorded markings. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.

Recorded variant and source limits
  • No inspected CFast contact-layout specification, numerical mating dimensions, powered adapter design or exact-card qualification is supplied.
  • No independently reviewed card dimensions, contact count, contact assignments or tolerance drawing are published in this profile.
  • A bus generation, lane count, VPG class or connector shape is not measured performance or a complete compatibility verdict.
Report a correction to these facts →

Bounded facts, visible unknowns

Specifications and limits

CFast card interface facts and limitations
Documented identificationThe CompactFlash Association identifies CFast as a Serial ATA card family. [C120A]
Important distinctionThe same association lists CompactFlash and CFexpress as separate card standards. [C120B]
Mechanical dimensionsNo independently approved mechanical dimensions. Do not use this record for fabrication or fit testing.
Engineering pinoutSource-checked engineering profile available; independent review pending. Open engineering profile →
Verified device listNot included. Check exact device and accessory documentation.
A boundary, not an omission to guess around.

Record the exact device model and the label beside the port. Obtain its manual and the accessory documentation. Keep unknown properties unknown instead of filling them from a visually similar item.

Before you connect

What to check

  1. Write down the exact card family and version.
  2. Match the camera and reader supported-media lists.
  3. Verify the required recording mode and sustained performance separately.
Trace a supported connection class →

What is not established

This field note does not approve a connection, publish a pinout or provide a measured template. Use the linked source scope and the checklist as a documentation starting point.

Your next step

Move from the form to the requirement.

Read the engineering reference Source-scoped details, orientation and explicit unknowns.Work through a connection Choose your task before deciding on a cable.Explore this evidence trail Inspect the claims and their dependencies. (private workspace)

The source trail

Evidence for this page

AI-assisted inspection is not independent engineering review. Source scope and access limitations are disclosed below. Procedural checklists are editorial requirements, not hardware measurements.

Back to first citation ↑
C120ASource checked · pending review

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

CompactFlash Association · Card types and form-factor distinctions ↗

Locator: CFexpress Form Factors; Type A versus Type B; Legacy Standards
Access: public page. No copied tables, logos, numeric throughput promises, exhaustive market status or licensed normative specification. Text-only scope.

S096: full source recordInspect review dependencies → (private workspace)

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval. Next review due 2027-01-01.

Back to first citation ↑
C120BSource checked · pending review

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

CompactFlash Association · Card types and form-factor distinctions ↗

Locator: CFexpress Form Factors; Type A versus Type B; Legacy Standards
Access: public page. No copied tables, logos, numeric throughput promises, exhaustive market status or licensed normative specification. Text-only scope.

S096: full source recordInspect review dependencies → (private workspace)

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval. Next review due 2027-01-01.

Back to first citation ↑
C120CSource checked · pending review

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

Delkin Devices · FAQs About the Industrial CFast Card — interface distinction ↗

Locator: Article dated 2022-05-06; What is the difference between CF and CFast?
Access: public page. Only interface/contact-count distinction adopted. No precise dimensions, universal flash technology, uptime, security, speed or card/device compatibility claims adopted.

S641: full source recordInspect review dependencies → (private workspace)

Claim scope: Manufacturer interface-identification passage only. No pin assignment, exact mating dimensions or card-reader support inferred.. Next review due 2027-01-12.

Back to first citation ↑
C120WSource checked · pending review

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.

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

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.
Access: public page. 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.

S985: full source recordInspect review dependencies → (private workspace)

Claim scope: Exact 3M N7G24-A0B2RA-00-0HT CFast host plug for Type I/II cards; explicit Number of Contact Rows property only.. Next review due 2027-01-20.

Suggest a correction to this field note →

Common questions

Questions this record can help resolve

What do UDMA, UHS and USB mean on a multi-card reader?Keep each card slot’s interface separate from the computer connection.

Take this family into a reader workflow.

See documented support, explicit exclusions and remaining unknowns for exact readers.

Explore reader coverage →Start an unsaved worksheet

Put this field note to work.

Add to discovery trayRecord an unsaved candidate (private workspace)

Compare look-alikes: CompactFlash versus CFast

Candidate selection does not confirm the identity or capabilities of your physical item.

Evidence behind this page

Scope first. Source second. Approval separate.

3 linked sources · 4 scoped claims · 0 sources with inspection/access flags.

Page scope: consumer_reference_expansion

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 3 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

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 4 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)

Prepare this page for review → (private workspace)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.