Install a PCI Express x16 card into a PCI Express x4 slot, in a 1U chassis
The PEX4TO16R PCI Express x4 to x16 Slot Extension Adapter lets you install PCI Express (PCIe) cards (up to x16) into x4 PCIe slots in a 1U rack mount chassis. A necessary accessory for almost any 1U chassis, the slot adapter lets you expand system capabilities by adding I/O ports or a dedicated graphics card. Backed by a StarTech.com 2-year warranty and free lifetime technical support.