Samsung Galaxy S21 5g Usb Port Connector Charging Board Micro Dock Signal Flex. Upgrade Your Galaxy S21 Series with Our High-quality USB Dock Charging Board. Designed Specifically for the S21, This Board Ensures Seamless Charging and Connectivity. Please Verify Your Phone's Model and Version (e.g., G991B or G991U) to Ensure Compatibility. For Any Questions, Feel Free to Reach out for Support. Please Note, Using an Incorrect Model Can Result in SIM Card Reading Issues. Each Board is Thoroughly Tested for Optimal Performance. Features: - Compatibility: Designed for Samsung Galaxy S21 Series - Models Supported: G991U, G991B, G991N, G9910 - Condition: Tested and in Good Working Order - Installation: Easy to Install; Confirm Your Phone Model/version Before Purchasing - Testing: Each Unit Tested Individually. Your order tracking code will be sent on shipping and takes up to 5 days to show live information.