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Sony MRW-G3 CFexpress Type A Card Reader

BH #SOMRWG3 • MFR #MRW-G3
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Sony MRW-G3 CFexpress Type A Card Reader
Key Features
  • 1 x CFexpress 4.0 Type A Card Slot
  • 1 x 40 Gb/s USB-C Port (USB4)
  • Heat Dissipating Enclosure
  • Includes USB-C to USB-C Cable
Import media captured on CFexpress Type A cards using the MRW-G3 CFexpress Type A Card Reader from Sony. This card reader supports CFexpress 4.0 and connects to your host Windows, Mac, iOS, iPadOS, or Android device using an integrated USB-C port, which supports the 40 Gb/s USB4 standard and also provides bus power. Also featured is a heat-dissipating structure that helps keep operations cool, even under heavy workloads.
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Sony MRW-G3 Overview

Import media captured on CFexpress Type A cards using the MRW-G3 CFexpress Type A Card Reader from Sony. This card reader supports CFexpress 4.0 and connects to your host Windows, Mac, iOS, iPadOS, or Android device using an integrated USB-C port, which supports the 40 Gb/s USB4 standard and also provides bus power. Also featured is a heat-dissipating structure that helps keep operations cool, even under heavy workloads.

CFexpress 4 Compatible Card Reader for CFexpress Type A Cards
This reader is optimized for use with Sony's CEA-G Series and supports the CFexpress 4 standard, so you can maximize card performance.
High Speed Transfers with 40 Gb/s USB4 Support
The MRW-G3 supports 40 Gb/s USB4, enabling high-speed transfers of large video files and high volumes of images by taking full advantage of the CEA-G Series' read speed of up to 1800 MB/s. Spend less time waiting for file transfers and more time creating.
Compatible with Most PCs, Smartphones, and Tablets for Efficient Workflows
This reader supports Windows and macOS as well as iOS, iPadOS, and Android OS for smartphones and tablets, enabling data import from most PCs and mobile devices. The compact and lightweight design makes it ideal for high-performance still and video editing workflows in a wide variety of locations.
Stable Data Transfers with High Reliability and Durability
This reader features a redesigned heat dissipation structure that maintains an optimal operating temperature, guaranteeing stable and reliable performance even when transferring large volumes of video or image data for extended periods.
UPC: 027242933408

Sony MRW-G3 Specs

Media Card Reader
1x CFexpress Type A (CFexpress 4.0 Type A / PCIe 4.0 x1)
Host Connection
USB-C (USB4) via Detachable Cable
Power Source
Bus Powered
Operating Conditions
32 to 104°F / 0 to 40°C
Dimensions
4 x 2.3 x 0.7" / 100.5 x 58 x 17.2 mm
Weight
3.7 oz / 106 g
Packaging Info
Package Weight
0.45 lb
Box Dimensions (LxWxH)
8.9 x 4.8 x 4.3"

Sony MRW-G3 Reviews

I finally bit the bullet and went for Sony

By G
Rated 5 out of 5
Date: 2026-03-05

This is my fourth cfexpress type A reader. The first was old USB type so I decided to replace it with one with usbc connector and support for the newer USB standards. Then I got two other brands which for some reason had compatibility problems, the first had issues with an Angelbird CFE-A card, and the second had problems showing up on my MacPro laptop. I should have just gone with Sony in the first place and save the headaches. It works with all the CFE-A cards I have as well as my MacPro and Windows machines

Solid!

By Anonymous
Rated 5 out of 5
Date: 2026-02-25

It’s feels solid and not cheap! Like it and sooooo fast

See any errors on this page?

If I wanted to replace the cable for a longer ...

If I wanted to replace the cable for a longer one, yet keep the high speed transfer, which cable would you suggest?
Asked by: Ronnie
I would recommend either the Urban Factory 240W BASEE USB-C Cable (6.6'), B&H # URCAB04UF, the Kondor Blue USB-C Cable (6', Kondor Blue), B&H # KOUSB4C6, or the OWC USB4 USB-C Active Optical Cable (10'), B&H # OWCCBLUS4A3M, for your 40 Gb/s USB4 usage needs with the Sony MRW-G3 CFexpress Type A Card Reader, depending on the length of cable you need. https://bhpho.to/4ta8Ltf https://bhpho.to/4rqWa31 https://bhpho.to/4qReJxn
Answered by: Manzell L
Date published: 2026-04-18

Does this device support thunderbolt cables to ...

Does this device support thunderbolt cables to enhance transfer speeds?
Asked by: ian
The Sony MRW-G3 CFexpress Type A Card Reader, B&H # SOMRWG3, has a maximum bandwidth of up to 40 Gbps; using a Thunderbolt cable would not result in faster transfer speeds.
Answered by: Miguel M
Date published: 2025-10-19

I have the MRW-G2 sony card reader currently. Is ...

I have the MRW-G2 sony card reader currently. Is this MRW-G3 card reader "required" to read the new 4.0 memory cards?
Asked by: Dwight
The Sony MRW-G3 CFexpress Type A Card Reader (B&H# SOMRWG3) features an internal PCIe 4.0 bus to read CFexpress Type A 4.0 cards more quickly. Having said that, the previous version, that is, the Sony MRW-G2 CFexpress Type A/SD Memory Card Reader (B&H# SOMRWG2) can also read Type 4.0 cards, albeit at 3.0 speeds. While you do not need the new MRW-G3 to read the PCIe 4.0-compatible memory cards, it does offer faster reading of those cards relative to the speed at which the predecessor would read them. To answer what may be your next question, the MRW-G3's reading (or writing) of the earlier 3.0 cards will be at the slower 3.0 speeds -- the same speeds at which the MRW-G2 would have read them.
Answered by: Yoni S
Date published: 2025-12-03

Does the MRW-G3 work with Sony Tough A memory ...

Does the MRW-G3 work with Sony Tough A memory cards that are earlier versions before the 4.0 new cards?
Asked by: Dwight
The Sony MRW-G3 CFexpress Type A Card Reader is compatible with CFexpress Type A cards that are 2.0 and 4.0.
Answered by: Rob K
Date published: 2025-12-03

Will this read Angelbird Cards?

Will this read Angelbird Cards?
Asked by: Ronnie
Yes, the Sony CFexpress Type A Card Reader will read the Angelbird CFexpress Type A Cards.
Answered by: Samik G
Date published: 2025-08-26
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