
It worked right away. I use it with both an Ubuntu laptop and a Raspberry Pi. No drivers required. It is a HID (Human Interface Device) and behaves like a keyboard, sending an identification code read from a card or key fob as a keystroke. My only (minor) complaint is that they offer a 14H format, which should give you something like 00000013579acf even if only reading some of the ID digits. The device I received has a configuration box below (in Chinese characters) that is not 8H and is marked. However, it is not returned in 14H format but in 8H format. To use the example above: 13579acf For the money it's probably just one thing, but the 14H option is a $1 waste.

Neewer Black Memory Card Storage Holder - Waterproof, Anti-Shock with 14 Slots for Micro SD, TF, CF, SD and XD Cards
12 Review

TP-LINK UH700 USB Hub, 7.1cm Ports, Black
12 Review

JJC Camera SD TF Micro SD Memory Card Case Holder Organizer Box with Card Removal Tool & Lanyard - Water-Resistant Storage for 4 SD & 4 TF Cards
12 Review

💻 LEEGLOAD 4 in 1 SD Card Reader Adapter for iPhone/iPad/Android/Computer and Digital Camera, Memory Card Adapter with USB C/USB A/Micro USB, Trail cam Card Viewer (Black)
13 Review