FIELD GUIDESource-led reference
← Field sheets / PC internals, storage & cards5 of 9Letter PDF (legacy download held for current evidence review). Current focused printable referencesA4 PDF (legacy download held for current evidence review). Current focused printable references

PORT & CABLE / FIELD GUIDES / 05 / CAMERA MEDIA

Read the complete card name.

Five card families and narrowly documented reader examples. A shared outline, familiar brand or version number does not replace the type letter and support list.

5 source-qualified rows2-page Letter / A4Revision 125.0.0 · Private review

Each PDF includes two pages: the chart, then source notes and a reused visual. Downloads work in the native site and full offline preview. Evidence dates remain unchanged.

01 / KEEP THE LIMIT BESIDE THE ANSWER

The side-by-side reference.

Documented reading and required next check. No universal fit, wiring or compatibility result.
Label / exact scopeWhat the evidence establishesWhat to check next
CFexpress Type ACFA / Sony MRW-G2

Type A is the smaller A/B form with one PCIe lane; MRW-G2 lists specified Sony Type A cards.

Do not infer: The reader documentation does not guarantee every card type or establish Type B support.

Record the full card family and exact reader model.

S096 · S438
Scope and dates ↓

CFexpress Type BCFA / Sony MRW-G1

Type B uses two PCIe lanes and shares dimensions and connector with XQD; MRW-G1 lists Sony Type B.

Do not infer: Shared form does not establish support in every XQD camera or reader.

Check the exact equipment support list and any manufacturer update requirement.

S096 · S495
Scope and dates ↓

XQDSony MRW-G1

The named reader lists Sony XQD G-series and M-series cards.

Do not infer: That list does not transfer to another reader because the slot looks similar.

Match the complete card series and reader model.

S495
Scope and dates ↓

CompactFlashCFA / Transcend RDF8 examples

PATA card family. Named RDF8 examples list CompactFlash UDMA7.

Do not infer: CompactFlash reader support does not establish CFast or CFexpress support.

Read the full family name, not just the letters CF.

S096 · S439 · S440
Scope and dates ↓

CFastCFA family identification

Serial ATA card family, separately listed from CompactFlash and CFexpress.

Do not infer: This family definition does not qualify a specific reader or camera.

Find explicit CFast support for the exact device.

S096
Scope and dates ↓

CFexpress Type A

CFA / Sony MRW-G2

Documented reading
Type A is the smaller A/B form with one PCIe lane; MRW-G2 lists specified Sony Type A cards.
Do not infer
The reader documentation does not guarantee every card type or establish Type B support.
Next check
Record the full card family and exact reader model.

S096 · S438 · Scope and dates ↓

CFexpress Type B

CFA / Sony MRW-G1

Documented reading
Type B uses two PCIe lanes and shares dimensions and connector with XQD; MRW-G1 lists Sony Type B.
Do not infer
Shared form does not establish support in every XQD camera or reader.
Next check
Check the exact equipment support list and any manufacturer update requirement.

S096 · S495 · Scope and dates ↓

XQD

Sony MRW-G1

Documented reading
The named reader lists Sony XQD G-series and M-series cards.
Do not infer
That list does not transfer to another reader because the slot looks similar.
Next check
Match the complete card series and reader model.

S495 · Scope and dates ↓

CompactFlash

CFA / Transcend RDF8 examples

Documented reading
PATA card family. Named RDF8 examples list CompactFlash UDMA7.
Do not infer
CompactFlash reader support does not establish CFast or CFexpress support.
Next check
Read the full family name, not just the letters CF.

S096 · S439 · S440 · Scope and dates ↓

CFast

CFA family identification

Documented reading
Serial ATA card family, separately listed from CompactFlash and CFexpress.
Do not infer
This family definition does not qualify a specific reader or camera.
Next check
Find explicit CFast support for the exact device.

S096 · Scope and dates ↓

02 / SEE THE DISTINCTION

A visual aid, not a fit gauge.

CFexpress Type B and XQD share a form but equipment support remains separately documented.
Reused concept diagram, unchanged. Not a physical specimen, not to scale. Technical and rights reviews remain pending.

No registered source-observed physical view is selected for this chart. A concept has not been substituted or counted as a specimen.

03 / THE EVIDENCE STAYS ATTACHED

Read the scope behind each row.

Compiled 2026-10-11 from inherited observations. A compilation date is not a new source inspection. Expand a row for its original claims, dates and source locators.

CFexpress Type A C121C · C121D

Example scope: CFA / Sony MRW-G2

C121C / P121

CFA describes CFexpress Type A as the smaller A/B form using one PCIe lane. The A/B type letter identifies a form factor; the separately described version-4 marking identifies a specification generation.

Card Types public text: Type A versus Type B and label FAQ; reinspected 2026-10-08 without changing the inherited source record.

Original claim verification: 2026-10-08. Status: source_checked. No independent hardware approval.

C121D / P121

Sony’s MRW-G2 instructions list Sony CFexpress Type A and the stated Sony SD families, while explicitly withholding a guarantee for every memory-card type. This is named-reader scope, not support for CFexpress Type B or for all cards.

Printed 5-019-283-B1 (1), PDF page 1 English Compatible memory cards.

Original claim verification: 2026-10-08. Status: source_checked. No independent hardware approval.

S096 · CompactFlash Association — Card types and form-factor distinctions
CFexpress Form Factors; Type A versus Type B; Legacy Standards · Source record checked 2026-10-03

S438 · Sony — MRW-G2 Operating Instructions — 5-019-283-B1 (1)
PDF page 1, English compatible cards, precautions, specifications and illustrations A–C; printed identifier 5-019-283-B1 (1). · Source record checked 2026-10-08

CFexpress Type B C122C · C122D

Example scope: CFA / Sony MRW-G1

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.

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

Original claim verification: 2026-10-08. Status: source_checked. No independent hardware approval.

C122D / P122

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

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

Original claim verification: 2026-10-11. Status: source_checked. No independent hardware approval.

S096 · CompactFlash Association — Card types and form-factor distinctions
CFexpress Form Factors; Type A versus Type B; Legacy Standards · Source record checked 2026-10-03

S495 · Sony — MRW-G1 CFexpress Type B / XQD reader supported cards
Product description and FAQ: supported Sony CFexpress Type B and Sony XQD G/M series cards. · Source record checked 2026-10-11

XQD C123C

Example scope: Sony MRW-G1

C123C / P123

Sony lists XQD G-series and M-series memory cards for the MRW-G1 reader.

Sony MRW-G1 and these named Sony XQD series only; a shared slot outline does not transfer this support to another reader.

Original claim verification: 2026-10-11. Status: source_checked. No independent hardware approval.

S495 · Sony — MRW-G1 CFexpress Type B / XQD reader supported cards
Product description and FAQ: supported Sony CFexpress Type B and Sony XQD G/M series cards. · Source record checked 2026-10-11

CompactFlash C119B · C119C

Example scope: CFA / Transcend RDF8 examples

C119B / P119

The CompactFlash Association identifies CompactFlash with the PATA interface.

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

Original claim verification: 2026-10-03. Status: source_checked. No independent hardware approval.

C119C / P119

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.

Original claim verification: 2026-10-08. Status: source_checked. No independent hardware approval.

S096 · CompactFlash Association — Card types and form-factor distinctions
CFexpress Form Factors; Type A versus Type B; Legacy Standards · Source record checked 2026-10-03

S439 · Transcend — RDF8 product sheet — Transcend-RDF8.pdf
PDF pages 1–2 visually inspected; card slots, Compatibility, Performance, Ordering Information and three-card insertion wording. No printed revision identifier. · Source record checked 2026-10-08

S440 · Transcend — RDF8 product sheet — EN_RDF8_PS_1905.pdf
PDF pages 1–2 visually inspected: page 1 Additional Features, page 2 Operating Environment Note and Compatibility. Page 3 multi-product comparison not adopted. · Source record checked 2026-10-08

CFast C120A · C120B

Example scope: CFA family identification

C120A / P120

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

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

Original claim verification: 2026-10-03. Status: source_checked. No independent hardware approval.

C120B / P120

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

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

Original claim verification: 2026-10-03. Status: source_checked. No independent hardware approval.

S096 · CompactFlash Association — Card types and form-factor distinctions
CFexpress Form Factors; Type A versus Type B; Legacy Standards · Source record checked 2026-10-03

Port & Cable · Know what connects. Compiled 11 October 2026 · Revision 125.0.0. Inherited evidence, not independent approval. Private/noindex.