Faster than ever, you can now achieve speeds of up to 1375MB/s with this 4-bay Thunderbolt™ 2 storage enclosure. It comes with two Thunderbolt™ 2 ports that support 20Gbps data and 4K video. The removable trays allow for easy installation and replacement of the drives. They are designed for both 2.5" SSDs where speed is the priority and for 3.5" HDDs when it's important to maximize the storage capacity. An ultra durable aluminum casing provides efficient heat dissipation, plus an extra large rear fan keeps your drives cool during long hours of operation. Large handle provides comfortable grip when relocating the device.