The Sabrent Quad NVMe SSD to PCIe 4.0 x16 Card (EC-P4BF) is the perfect complement for a desktop that requires additional high-performance storage. Add one, two, three, or four NVMe SSDs with a single, physical x16 PCIe slot adapter. Only M.2 M key SSDs are supported but older and newer generation SSDs in the 2230/2242/2260/2280 form factors will work at up to PCIe 4.0 speeds. The adapter is also backward compatible with PCIe 3.0/2.0 slots. Drives can be accessed individually or placed into a RAID via Intel® VROC, AMD Ryzen™ NVMe RAID, UEFI RAID, or software-based RAID through Windows Storage Spaces, when respective criteria are met.High-performance drives and systems may require high-end cooling and this adapter has you covered. It’s constructed out of aluminum material for physical stability and improved heat dissipation. It also includes thermal padding for all four SSDs to keep things cool and in place. Active cooling for high-performance environments is optional with a switchable fan. The adapter is plug and play with driverless operation. Rear-mounted LEDs quickly show drive status for a quick visual update. The host must support PCIe bifurcation (lane splitting) to access more than one drive, so be sure to check your motherboard’s manual ahead of time.SYSTEM REQUIREMENTS• Windows 8.1 or higher.• One empty PCIe x16 slot.• A motherboard and BIOS compatible with PCIe Bifurcation (also called PCIe Splitting) is required. For instance: Intel VROCK / AMD Ryzen NVMe RAID.PACKAGE CONTENT• 4-DRIVE NVMe SSD to PCIe 4.0 x16 card with active cooling.• All necessary screws.• Quick user guide.