HOOCCC Dual M.2 NVMe PCIe 4.0 x16 Splitter Card x8 x4 x4 Hard Drive Adapter

Dual M.2 NVMe adapter for PCIe 4.0 x16 slots

This adapter card adds two M.2 NVMe SSDs to a single PCIe 4.0 x16 slot using x8 x4 x4 bifurcation. It supports M.2 2230 2242 2260 and 2280 drives and remains backward compatible with PCIe 3.0 platforms. The card targets builders who need extra high-speed storage without occupying additional expansion slots.

Bifurcation-dependent performance under load

Sustained transfer rates rely on motherboard BIOS support for PCIe bifurcation; without it only one SSD will be detected. The open frame PCB layout provides passive cooling to help maintain stable data throughput during prolonged workloads. Peak sequential speeds up to 7500 MB/s vary with the installed SSDs and system configuration.

Full height and low profile brackets included

Both bracket sizes ship in the box allowing installation in standard ATX towers or small form factor cases. The controller card uses a 4-layer PCB for signal integrity and features front and back M.2 slots for dual drive mounting. Builders who need a hardware PCIe switch or support for more than two drives cannot use this card.