16 s
keys: R replay · Space pause · H record mode · arrows step · URL: ?rec&dur=16&paused&loop

Eight thousand hertz, read off the descriptor.

USB Tree View · 2026-09-07 · "EpomakerHE108" wired, PID 5030 · "2.4G Wireless Keyboard" receiver, PID 5038
Connected at
12Mb/s
480 is High-Speed. 12 would be the cap.
Polling rate
1000Hz
wired and receiver
One USB frame is one millisecondhow often the host can ask
What the board wrote down when it plugged inUSB Tree View, wired report
WIRED · PID 5030 · HIGH-SPEED, bInterval=1 · PASS 2.4 GHz RECEIVER · PID 5038 · SAME SPEED, SAME INTERVAL · PASS BLUETOOTH · 125 Hz · 64× SLOWER · PUBLISHED ON THEIR OWN SLIDE
Read with USB Tree View on 2026-09-07. VID 0x3151 Yichip, wired PID 0x5030, receiver PID 0x5038. bInterval=1 on all three interrupt IN endpoints of both devices, pipes open at 125 µs.
The same report also lists a 1 ms interval under Other Speed Configuration. That is the full-speed fallback, not what is running. Reports saved in the project folder · CK Tech Check