The adapter board is equipped with a fixing screw for securing when extending the hard drive, easy to install and remove. It can be cut off, five lengths can be adjusted . Made of high-quality metal material, , firm and stable for us to use. It can support 2230 to 2242/2260/2280, 2242 to 2280, 2260 to 2280. It does not support 2242 to 2260. Function: change the length of the hard disk.