PCIE-PEX8747M4 PCIE 3.0 x4 Interface to 4-Port NVME M.2 SSD Expansion Card for Desktop PCs, Broadcom PLX PEX8747 PCIE Gen 3.0 Switch, 32Gb/s Bandwidth, On-Card PCIE Bifurcation, for Storage & Boot 

1. This PCIE-PEX8747M4 is a PCIE Gen 3.0 x4 to 4-Port NVME M.2 SSD expansion card that effectively expands 4x PCIE lanes from motherboard to 16x PCIE lanes by using 4x NVME M.2 physical slots. It provides 32Gb/s total bandwidth for 4x 32Gb/s max NVME M.2 SSDs on desktop PCs and NAS systems without requiring PCIE Bifurcation support, making it ideal for video editing, data storage, and gaming.
2. Active On-Card PCIe Bifurcation, Not Require Motherboard PCIE Bifurcation. The PCIE-PEX8747M4 is built on the Broadcom PLX PEX8747 PCIE Gen 3.0 switch. It draws 4x PCIE lanes (32Gb/s) from motherboards, expands to 16 PCIE lanes, then assigns these lanes into 4x PCIE Gen 3.0 x4 links (32Gb/s each) via 4x physical NVME M.2 slots. This enables users to install and run 4x NVME M.2 SSDs at full speed 32 Gb/s.
3. Host Interface: PCIE Gen 3.0 x4; Device Slot: 4x NVME M.2 Key-M slots; PCIE Upstream: PCIE Gen 3.0 x4, 32Gb/s; PCIE Downstream: 4x PCIE x4 links, 32 Gb/s max per NVME M.2 slot; M.2 SSD Form Factors: 2230, 2242, 2260, 2280, 22110; NVME Protocol: 1.3, 1.4, 2.0; RAID Function: No hardware RAID, software RAID supported; SSD Features: Supports data storage and UEFI (GPT) boot from NVME M.2 SSDs.
4. Plug-and-Play Compatibility: Windows: Windows 7, 8.x, 10, 11 64bit and Windows Server 2025, 2022, 2019, 2016, 2012 R2, and 2012 64bit. Virtualization: VMware ESXi, Proxmox VE, and other major hypervisors. Linux: Ubuntu, RHEL, Debian, and other kernel-based distributions. NAS: True NAS, Synology DSM, QTS, AiNAS, Unraid and more. MAC OS: Fully supported for storage expansion, NOT recommended boot.
5. Complies with PCIE Gen 3.0 (8GT/s/lane), delivering a total bandwidth of 32Gb/s and ensuring each NVME M.2 SSD achieves speeds up to 32Gb/s. Fully compatible with PCIE Gen 4.0 and Gen 5.0, operating at the card maximum native speed of 32Gb/s per drive. Backward compatible with PCIE Gen 2.0, providing a reduced bandwidth of 40Gb/s, with each NVME M.2 SSD capable of reaching up to 20Gb/s.
6. ATTENTION: 1. The PCIE-PEX8747M4 utilizes a PCIE x4 physical interface and will occupy one PCIE x4, x8 or x16 slot on the motherboard. 2. Supports NVME M.2 Key M SSDs only. Not compatible with M.2 Key B SATA SSDs. 3. NVME M.2 SSDs may generate substantial heat during operation. Ensure sufficient chassis airflow or install heatsinks on the NVME M.2 SSDs. 

Plug-and-Play Compatibility: Windows: Windows 7, 8.x, 10, 11 64bit and Windows Server 2025, 2022, 2019, 2016, 2012 R2, and 2012 64bit. Virtualization: VMware ESXi, Proxmox VE, and other major hypervisors. Linux: Ubuntu, RHEL, Debian, and other kernel-based distributions. NAS: True NAS, Synology DSM, QTS, AiNAS, Unraid and more. MAC OS: Fully supported for storage expansion, NOT recommended boot. 

This PCIE-PEX8747M4 is a PCIE Gen 3.0 x4 to 4-Port NVME M.2 SSD expansion card that effectively expands 4x PCIE lanes from motherboard to 16x PCIE lanes by using 4x NVME M.2 physical slots. It provides 32Gb/s total bandwidth for four 32Gb/s NVME M.2 SSDs on desktop PCs and NAS systems without requiring PCIE Bifurcation support, making it ideal for video editing, data storage, and gaming.

Active On-Card PCIE Bifurcation, Not Require Motherboard PCIE Bifurcation.
In reality, most of budget and legacy motherboard do not support native PCIE bifurcation. Even motherboards support PCIE Bifurcation often require complex BIOS setting and extra PCIE convert card. This PCIE-PEX8747M4 PCIE NVME M.2 expansion card solves this issue by using Broadcom PLX PEX8747 PCIE Gen 3.0 switch. First, it draws 4x upstream PCIE lanes (32Gb/s) from motherboard PCIE slot. Second, it expands 4x upstream PCIE lanes to 16x downstream PCIE lanes. Third, configure these 16x PCIE lanes to 4x PCIE Gen 3.0 x4 lane (each port 32Gb/s) link downstream ports by using 4x NVME M.2 physical slot. This enables 4x NVME M.2 SSDs to run at full Gen 3.0 32Gb/s max speed on any desktop PCs. Users no need to do any setting in BIOS. No need to check if motherboard and CPUs support PCIE Bifurcation. No need to buy PCIE convert card. This PCIE-PEX8747M4 simplifies NVME M.2 SSDs deployment, delivering a fast, low latency, reliable and stable NVME M.2 SSDs connection for NVME storage array.

Plug-and-Play System Compatibility:
Windows: Windows 7, 8.x, 10, 11 64bit and Windows Server 2025, 2022, 2019, 2016, 2012 R2, and 2012 64bit.
Virtualization: VMware ESXi, Proxmox VE, and others.
Linux: Ubuntu, RHEL, Debian, and other kernel-based distributions.
NAS: True NAS, Synology DSM, QTS, AiNAS, Unraid and more.
MAC OS: Fully supported for storage expansion, NOT recommended for boot.

Package List: 1X PCIE-PEX8747M4 1X Low Profile Bracket.