Purchased on Amazon for 4299 yen and used about 1-2 times a week for 3 months. Although not a genuine product, it worked without any problems. Used with a Dell Precision 3591. Please check image 3 for compatible series. The protective sheet has some minor stains, but it has been used only a few times, and the main body is in good condition. Dell precision / latitude / xps15 / xps17