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Four small grey USB-C to USB-A adapters with zinc alloy shells

COUPLING USMILE USB C to USB Adapter 4-Pack Grey 10Gbps

SKU CH-Y0TK-RSSVH

Four compact USB-C to USB 3.0 adapters transfer data at 10Gbps and add OTG support for legacy peripherals

  • Units per package1
  • Product color4pack-Grey
  • Product dimensions1.1 in × 0.6 in × 0.3 in
  • 10 Gbps transfer speed moves large files fast
  • OTG support connects mice and keyboards to phones
  • Zinc alloy shell tested to 10000 insertions
  • Smart chip prevents overheating during charging
  • Four compact adapters at 1.1 x .6 x .3 in each

Four-pack USB-C to USB-A adapters

This four-pack provides USB-C to USB-A adapters for users who need to connect legacy USB-A peripherals to modern USB-C ports on laptops, tablets and smartphones. Each adapter supports OTG so a phone or tablet can host flash drives, keyboards or mice without extra software. The grey zinc-alloy shells are compact at 1.1 x .6 x .3 inches and rated for over 10000 insertions.

Sustained 10 Gbps transfer capability

The adapters maintain USB 3.0 speeds up to 10 Gbps during extended file moves between external SSDs or hard drives and host devices. An integrated smart chip manages heat and prevents short-circuiting so performance stays stable during long backup sessions. No active cooling is required and the metal housing dissipates warmth effectively under continuous load.

Plug-and-play installation with broad device support

Simply insert the adapter into a USB-C port and attach the USB-A device; drivers are not required on MacBook Pro or Air models from 2021 to 2024, iPad Pro or Air, iPhone 13 through 17, Chromebooks, Pixelbook, Galaxy S22 through S25 or Microsoft Surface. The only limitation is that devices lacking a USB-C port cannot use these adapters.

How it compares

Measured against everything we stock in USB Adapter Cables & Dongles, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 75% of the 1,430 comparable items (median $14.99).

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Specifications

Product
Brand nameCOUPLING USMILE
Part numberad3.0-CA0326G4
Product color4pack-Grey
Size & build
Product dimensions1.1 in × 0.6 in × 0.3 in
In the box
Units per package1

Questions about this item

Does the adapter get hot or draw extra power when I leave it plugged in all day?

The zinc-alloy shell and smart chip are designed to prevent overheating and short-circuiting during continuous use, keeping power draw stable.

What must my device already have for this adapter to work?

Your laptop, tablet or phone needs a USB-C port that supports USB 3.0 data and OTG so the adapter can pass through 10Gbps transfers and peripheral connections.

Will my older USB-A flash drive or mouse work at full speed through this adapter on a newer USB-C laptop?

Yes — the adapter is rated for USB 3.0 speeds up to 10Gbps, so legacy USB-A drives, keyboards and mice run at their maximum supported rate when connected to a USB-C host.

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