PCIe 4.0 x16 to x8x8 Bifurcation Expansion Card, Gen4 1-to-2 PCI-E Split Board with 20mm Spaced Slots, SATA CPU 4Pin Aux Power Port for GPU, Capture & Network Cards

This PCIe 4.0 x16 to x8x8 bifurcation split expansion card converts one motherboard PCIe x16 slot into two separate x8 PCIe interfaces, solving the insufficient PCIe slot issue on workstations, editing hosts and servers with limited native expansion ports.

It strictly complies with PCI Express 4.0 Gen4 specification while maintaining full compatibility with PCIe 3.0 hardware. A dedicated clock splitting IC handles lane arbitration independently to prevent bandwidth bottlenecks during dual-device simultaneous operation. Note: Motherboard BIOS must support PCIe bifurcation and allow x8x8 lane split mode to activate full function.

Designed with 20mm standard spacing between two PCIe slots, it reserves enough clearance for large GPU heatsinks, cooling fans and thick expansion brackets without physical interference. Equipped with a SATA-powered CPU 4Pin auxiliary power interface, it delivers extra stable 12V power for dual high-power PCIe devices and avoids overload shutdown caused by insufficient slot power supply.

Thickened 5U gold-plated gold fingers enhance conductivity and anti-oxidation performance for long-term continuous running. Built-in power indicator LED lets you quickly check working status at a glance. It widely supports dual GPU rendering rigs, multi-channel video capture workstations, server multi-network card setups and industrial PCIe expansion equipment. Plug-and-play after correct BIOS bifurcation configuration, an essential high-performance PCIe lane expansion accessory.