GPU-Xpander Rack Mount 2 enables you to add two slots to your watt- and slot-limited rackmount computer so you don't have to buy new ones. Cubix GPU-Xpander Rack Mount 2 is an expansion enclosure that connects to a host computer using an adapter in a PCI Express (PCIe) x8 or x16 slot and a x8 or x16 cable. GPU-Xpander Rack Mount 2 provides two Gen 2 x16 slots (x16 electrical) slots that support two double-wide controllers such as GPUs or multi-function / multi-port cards, including audio, FireWire, Gbit Ethernet and USB 2.0. GPU-Xpander Rack Mount 2 provides its own power supply and cooling.