I bought this to extend my PS4 hard drive and have not had a problem with it. It was extremely easy to set up. The games run exactly the same as they do off the internal hard drive. Absolutely no difference. All the games appear on the PS4 home screen regardless of whether they are stored internally or externally. Be aware the PS4 only has 2 USB ports on the front, (unlike the PS4 Pro that has 2 on the front and 1 on the back) so if you do not have a PS4 Pro, an external hard drive such as the WD Black will only leave you with 1 USB port for controllers. Overall, very happy with this product. Its all the storage I will ever need!