Rii RK100 wired keyboard.
* Size: 435x137x30 mm
* Chip type: HK9703
* Key lifespan: Approximately 5 million keystrokes
* Power consumption: 15mA
* Voltage: 1.8V to 4.2V
I don't have a price. The keyboard has been used very little and works fine, but there is a missing key, which is the Ctrl key.