01MEMORY CARD ADAPTERS
Dual slot speed for your memory cards
A compact companion for the photographer or creator who moves between devices daily, this reader sits unobtrusively beside the keyboard. Its plastic housing is light enough to forget until needed, yet robust enough for regular handling.
The Simplecom CR301B accepts both standard SD and MicroSD cards simultaneously, allowing direct file transfer to any compatible computer. It suits users who require quick access to high-density media without installing software.


02MATERIALS
Lightweight plastic construction for portability
Crafted from durable plastic, the unit maintains a low profile at just ten grams. This material choice ensures the device remains featherlight in a pocket or bag, resisting the wear of frequent travel while maintaining structural integrity around the card slots.

04COMPATIBILITY
Universal support across operating systems
Designed for seamless integration, the device works natively with Windows, macOS, Linux, and Chrome OS. There is no need to download proprietary drivers; simply plug it into a USB port and the system recognises the connected media immediately, simplifying setup for diverse technical environments.
DETAILS
Dual slots for simultaneous card access
Two distinct slots allow users to read an SD card and a MicroSD card at once. The SD slot accommodates SDXC, SDHC, SD, MMC, and RS-MMC formats, while the MicroSD slot supports Micro SD, Micro SDXC, Micro SDHC, and UHS-I standards, covering most modern camera and drone storage options.
AT A GLANCE
The key points
- Supports SDXC and UHS-I micro SD formats
- USB 3.2 Gen 1 interface reaches 5Gbps
- Plug and play design requires no drivers
- Housing measures 59x17x10mm and weighs 10g
- Compatible with Windows, macOS, Linux, Chrome OS
About this product
CR301B is a SuperSpeed USB SD and MicroSD card reader for fast data access and management of your memory cards. It’s the perfect solution for fast accessing your SD or MicroSD cards, you can easily transfer files from memory cards into your computer through a USB port. The driverless plug & play makes for easy installation and no driver software is needed.
Compliant with USB 3.0 (USB 3.2 Gen 1) specifications that guarantee fast access with SuperSpeed data transfer rates up to 5Gbps. It also supports high density SDXC memory cards, and ultra high speed UHS-I memory cards.
Features
- Slot Card Reader for SD or MicroSD memory cards
- USB 3.2 Gen 1 (USB 3.0) SuperSpeed interface up to 5Gbps
- Easily access and manage data on your memory cards
- Support high density SDXC and Ultra High Speed UHS-I memory cards
- Backwards compatible with USB 2.0
- Plug and play, no driver software required
- USB powered, no external power required
- Compatible with Windows, macOS, Linux, Chrome OS
Specifications
- Interface
- USB 3.0 (USB 3.2 Gen 1)
- Transfer rates
- SuperSpeed up to 5Gbps
- SD Slot
- SDXC, SDHC, SD, MMC, RS-MMC
- MicroSD Slot
- Micro SD, Micro SDXC, Micro SDHC, UHS-I
- Operating Temperature
- 0°C – 45°C
- Housing Material
- Plastic
- Dimensions
- 59x17x10mm
- Weight
- 10g
- System Requirements
- Windows, macOS, Linux, Chrome OS













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