Holiday Shipping Details & Extended Holiday Returns 
Model: PA21
| Interface to PC | PCI-Express 4.0/3.0 X8 |
|---|---|
| Interface to SSD | 2 x Key M/B+M (Note: some M.2 SATA SSDs are also Key B+M) |
| Max Bandwidth (GBbps) | ~16GBbps (PCIe 4.0 X8); ~8GBbps (PCIe 3.0 X8) |
| Chip | ASM1182E |
| Form Factor | 2230/2242/2260/2280/22110 |
| OS Compatibility | Windows and Linux (Note: can not work with windows 7 and Mac Pro 5.1) |
| PCIe Bifurcation | Not support |
Dual M.2 PCIe SSD Host Adapter
- Add 2 x M.2 PCIe (NVMe/AHCI) SSD (M-Key) onto a single PCIe X8 host adapter, so you can access 2 x M.2 NVMe SSD at the same time
- Support soft RAID in Windows/Linux/3rd party software
- Support M.2 NVMe SSD RAID-on-CPU (VROC) in the Intel Platform, but you need to purchase an Intel VROC license by yourself
- Support M.2 NVMe RAID in AMD Platform
- Not compatible with Mac Pro 5.1
- The gap between the two NVMe slot is 3mm
PCIE Bifurcation Setup in BIOS/UEFI
- Noted: This Dual M.2 PCIe SSD Host Adapter can not splitter PCIE X8 to PCIe X4X4, so your motherboard must support PCIE Bifurcation function. Otherwise, only one M.2 PCIe SSD will be recognized. If you are not sure PCIe Bifurcation of your motherboard, please provide the motherboard information, and we will reply within 24 hours.
- Setup PCIE splitter in BIOS/UEFI into X4X4X4X4 or X4X4 (Compatible with Hyper M.2 X16 mode in ASUS).
- Note: In mode X8X4X4, only one M.2 NVMe SSD will be recognized.
Soft RAID in Window 10
- When you find 2 separate M.2 NVMe SSD in Disk Management of Windows 10
- Right click the disk volume, which you want to setup soft RAID
- A pop-up window appears, click the option (Spanned/Striped/Mirrored)
- Noted: You can setup soft RAID in Linux/Mac/3rd party software also.
PCIE X8 Full Speed
- Compatible with PCIe 4.0/3.0/2.0 motherboards, and install into PCI-Express X8 lane.
- To reach PCIe 4.0 speed, make sure your CPU and motherboard and PCIe SSDs are all PCIe 4.0 enabled.
- To reach PCIe X8 full bandwidth, setup 2 x M.2 PCIe SSD into RAID 0 mode.
M.2 SSDs Installation
- M.2 SSD head tilted at 30 degree angle, inserted into Key M interface
- The brass standoff snaps into the semi-circular position at the end of the M.2 SSD
- Secure the brass standoff from the back with screw
Packaging includes
- PA21
- 2 x M.2 screw and copper stand
- 8cm low-profile bracket
- Screws for bracket mounting to PC
- Screwdriver
Note: If the M.2 screw and copper stand are pre-installed in position 22110, you can remove it and install them in position 2280.
