u-Link NAND is a programmer that program the NAND flash.
You need to buy socket yourself or you need to buy the clip to be able to program the NAND flash on board.
This device also use the same software as u-Link NT,USB BDM NT,USB JTAG NT. (1.16 and up).
Please make sure you understand how to use this device. More videos will be made https://www.youtube.com/c/usbbdm/videos