Razer BlackWidow V3 Pro Keyboard authentic

Product Name: Razer BlackWidow V3 Pro Keyboard authentic
Razer - BlackWidow V3 authentic Pro Full Size Wireless Mechanical Green Switch Gaming Keyboard with Chroma RGB Backlighting - Black 3 modes of connection via Razer HyperSpeed( wireless 2.4 GHz), Bluetooth or USB-C. NOTE: The physical volume knob which is on the top right is not working well. The volume knob is not necessay in daily use because we mainly adjust volume through our operation system on the computer/PC/Mac/iPad/iphone. Therefore, this physical knob is useless actually. I bought it in Sep 14, 2021, and only slightly used it in my office work. My work and study will not need keyboard in the future, so I want to sell it.