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Compact USB-C card reader with dual UHS-II slots, aluminium alloy body and braided cable

UGREEN 15251 RFID USB-C SD 4.0 Card Reader 312MB/s

SKU CH-VAQ3-GE6W2 MPN 15251

USB-C card reader reads SD and microSD cards simultaneously at up to 312 MB/s

  • ConnectorsUSB Type C
  • FeaturePlug & Play
  • Dimensions1.7 L x 10.1 W x 15.1 H centimeters
  • Weight0.06 kilograms
  • Regulatorynot_capable_emitting_rf_energy
  • Transfers 4K footage at up to 312 MB/s with SD 4.0 UHS-II support
  • Reads and writes two cards at once through dual UHS-II SD and microSD slots
  • Works instantly on iPhone 15/16 Pro, MacBook, Android and tablets with no drivers
  • Aluminium alloy shell and braided cable withstand daily transport better than plastic
  • Compact 1.7 × 10.1 × 15.1 cm design weighs only 0.06 kg for pocket carry

USB-C SD 4.0 card reader

The UGREEN 15251 connects UHS-II SD and microSD cards to USB-C devices. It supports the SD 4.0 standard for transfer rates up to 312 MB/s. The aluminium housing and braided cable are built for regular transport. No drivers are required on most laptops, tablets and recent smartphones.

Photographers and videographers with USB-C gear

Creators who offload 4K footage or high-resolution bursts from two cards at once will benefit from the dual-slot design. Users whose devices only offer USB-A ports or who need legacy card formats such as CompactFlash cannot use this reader.

SD 4.0 312 MB/s maximum throughput

The single specification that decides suitability is the peak transfer speed of 312 MB/s on SD 4.0 UHS-II media. If your workflow demands sustained writes above that figure, this reader will not meet the requirement.

Highlights

  • Transfers 4K footage at up to 312 MB/s with SD 4.0 UHS-II support
  • Reads and writes two cards at once through dual UHS-II SD and microSD slots
  • Works instantly on iPhone 15/16 Pro, MacBook, Android and tablets with no drivers
  • Aluminium alloy shell and braided cable withstand daily transport better than plastic
  • Compact 1.7 × 10.1 × 15.1 cm design weighs only 0.06 kg for pocket carry

Specifications

BrandUGREEN
Model15251
Part Number15251
ConnectorsUSB Type C
FeaturePlug & Play
Dimensions1.7 L x 10.1 W x 15.1 H centimeters
Weight0.06 kilograms
Regulatorynot_capable_emitting_rf_energy

Questions about this item

Does the 312 MB/s ceiling of the SD 4.0 interface become the bottleneck during long copy sessions?

The reader supports SD 4.0 UHS-II cards up to 312 MB/s, so the card itself limits sustained throughput.

How warm does the aluminium case get and how much power does it draw when reading two UHS-II cards all day?

The aluminium alloy body dissipates heat from the dual UHS-II slots, and the USB-C connection supplies all needed power without an external adapter.

Which host devices must I already own to use the USB-C connector and the dual UHS-II slots?

A USB-C port on a laptop, tablet, iPhone 15/16 Pro Max or Android phone with OTG support is required.

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