Welcome to the aerocool gt a it is a high performance case for gamers want a docking station built in yes simply just slide off the almost invisible cover near the front side of the top cover to reveal a hot swap bay for a either 35 or a 25 hdd just dock your hdd whenever you need to and you are always on the go with your data wherever you go this model also provide two usb20 and one usb30 connection plus two fan controller dials to adjust fan speeds and each dial support max 10 wat