Best keyboard in the test

Good keyboard, the keys are well made and have a rough surface, which makes typing comfortable and safe.
Key operation is very soft. However, the key should be completely depressed, otherwise sometimes the key is not recognized. That's why only 4 stars.
Lighting is top.
Had this keyboard with the test:
- Logitech Ultra Flat Keyboard (loudest key noise)
- Microsoft Sidewinder X4 (very small keys, slippery keys, second loudest keyboard, soft lighting, best design)
- My old Keysonic ACK-715EL (quietest keyboard, LED defect and Enter key wobbly because buttons fastening canceled)

The KeySonic KSK-6001 UELX had the best writing sensation and the key noise and the Belecuhtung was pleasant.