--- product_id: 426032752 title: "PA21 Dual M.2 NVMe SSD to PCIe 4.0 X8, Bifurcation Motherboard Required" brand: "glotrends" price: "$57.75" currency: USD in_stock: true reviews_count: 13 category: "Glotrends" url: https://www.desertcart.us/products/426032752-pa21-dual-m-2-nvme-ssd-to-pcie-4-0 store_origin: US region: United States of America --- # PCIe 4.0 x8 bandwidth Dual M.2 NVMe slots OS-based Soft RAID support PA21 Dual M.2 NVMe SSD to PCIe 4.0 X8, Bifurcation Motherboard Required **Brand:** glotrends **Price:** $57.75 **Availability:** ✅ In Stock ## Summary > 🚀 Unlock Dual NVMe Power – Because One SSD is So Yesterday! ## Quick Answers - **What is this?** PA21 Dual M.2 NVMe SSD to PCIe 4.0 X8, Bifurcation Motherboard Required by glotrends - **How much does it cost?** $57.75 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/426032752-pa21-dual-m-2-nvme-ssd-to-pcie-4-0) ## Best For - glotrends enthusiasts ## Why This Product - Trusted glotrends brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bootable & Versatile:** Use as your primary OS drive or high-speed storage; perfect for pros who demand both speed and flexibility. - • **Next-Gen PCIe 4.0 Powerhouse:** Each SSD enjoys a dedicated PCIe 4.0 x4 link delivering up to 64Gbps—future-proof your rig with cutting-edge bandwidth. - • **Compatibility Check is a Must:** Ensure your motherboard supports PCIe bifurcation and enable it in BIOS to unlock full dual-drive potential—don’t get left behind. - • **Customizable RAID Flexibility:** Leverage your OS’s native RAID tools (RAID 0/1) for tailored speed or redundancy without extra hardware costs. - • **Double Your Speed, Double Your Storage:** Run two blazing-fast M.2 NVMe SSDs simultaneously from a single PCIe x8 slot for ultimate performance. ## Overview The PA21 adapter transforms a single PCIe 4.0 x8 slot into a dual M.2 NVMe SSD powerhouse, delivering up to 64Gbps per drive. Designed for motherboards with PCIe bifurcation support, it enables OS-managed RAID configurations and supports multiple M.2 form factors, making it an essential upgrade for professionals seeking maximum storage speed and flexibility. ## Description desertcart.com: PA21 Dual M.2 NVMe SSD to PCIe 4.0 X8, Bifurcation Motherboard Required | Soft RAID via OS Tool, Supports 22110/2280/2260/2242/2230 M.2 SSD, Up to 64Gbps : Electronics Review: Works - Installed on my pc for 2- 4tb cards and it worked as intended. I would recommend Review: It works - requires bifurcation motherboard - Not sure if I spelled that right, bifurcation. This card does not do its own bifurcation. If your motherboard dose then make sure it can bifurcate by 4, the slot you put it into. I would have had to use this in the first x16 slot, which my GPU occupies, in order to get x4, but I couldn't fit the GPU into the second slot so I had to buy another .. well, 2 of these that actually DO bifurcation on the adapter itself. I ended up not using this, I'll figure out a use for it in the future, because my second slot cannot X4 bifurcate, only x2, so watch out for that. The first slot can do x4 but the second slot on the mobo is only x2, this is something I didn't expect to run into and I didn't find any information about it so you have that info here now. If you want to make sure all of your nvme show up in your OS, get a board that does the bifurcation on-board, not forcing the motherboard to do it as a feature. You'll be glad you spend the extra money and it will cost quite a bit more for that. Also, what I did was get pcie gen 3 cards with 2x nvme slots on each. I have pcie gen 4 but the way I set this up the nvme are just a tad bit faster than my gen 4 nvme I have on board. I did raid0 on the entire set which grants me a bit over full speed of my gen 4 drives. This was a cheaper alternative since I am doing raid0 but if you're not doing raid0 then it will be much slower if getting gen 4. Safest bet is gen 4 all the way through, of course. ## Features - Dual M.2 NVMe on One PCIe X8 Slot - Run two M.2 NVMe SSDs at the same time from a single PCIe x8/x16 slot. Fits 22110/2280/2260/2242/2230 M.2 NVMe SSDs. - Check Your Motherboard First - This is a passive adapter with no bifurcation chip. Your motherboard must support PCIe Bifurcation (X4X4X4X4, X4X4X8 or Hyper M.2 X16 mode), and you must enable it in BIOS. Without bifurcation, only the NVMe-1 port is recognized. Not compatible with X8X4X4 mode, and not for Mac Pro 5.1. - Up to 64Gbps per Drive - Each SSD gets a dedicated PCIe 4.0 x4 link. Full PCIe 4.0 speed require a PCIe 4.0 CPU (Intel 11th Gen or newer), a PCIe 4.0 motherboard slot and a PCIe 4.0 M.2 SSD. Backward compatible with PCIe 3.0 and 2.0 at their own speeds. - Soft RAID via OS Tool - There is no onboard RAID controller, so RAID is built by your operating system: RAID 0 or RAID 1 through Windows Disk Management, Storage Spaces or Linux mdadm, on Intel and AMD platforms. Intel VROC (RAID-on-CPU) requires a separate license purchased from Intel. - Bootable OS Drive - Reinstall your operating system and set BIOS/UEFI to boot from the M.2 NVMe SSD on this adapter. Some older motherboards cannot boot from NVMe; in that case the SSDs still work as high-speed storage drives. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09PGDMWKH | | Best Sellers Rank | #77 in Computer Memory Card Adapters | | Brand | GLOTRENDS | | Compatible Devices | PC/Server (PCIe Slot support PCIe Bifurcation: X4X4 or Hyper M.2 X16 mode), Not support Mac Pro | | Customer Reviews | 4.2 out of 5 stars 550 Reviews | | Hardware Interface | PCIE x 8 | | Item Dimensions L x W x H | 5.9"L x 2.1"W x 4.7"H | | Item Highlight | Soft RAID via OS Tool, Supports 22110/2280/2260/2242/2230 M.2 SSD, Up to 64Gbps | | Item Weight | 0.13 kg | | Manufacturer | glotrends | | Mfr Part Number | PA21 | | Model Number | PA21 | | Number of Items | 1 | | Operating System | Linux, Windows, Mac OS (Not support Windows 7/ Mac Pro 5.1) | | Product Dimensions | 5.9"L x 2.1"W x 4.7"H | | Style | Dual M.2 NVMe Adapter without PCIe Bifurcation Function, PCIe 4.0/3.0 X8 Bandwidth | | Style Name | Dual M.2 NVMe Adapter without PCIe Bifurcation Function, PCIe 4.0/3.0 X8 Bandwidth | | Warranty Description | 30 Day Warranty Against Manufacturer Defects | ## Product Details - **Brand:** GLOTRENDS - **Hardware Interface:** PCIE x 8 - **Item Weight:** 0.13 kg - **Product Dimensions:** 5.9"L x 2.1"W x 4.7"H - **Style:** Dual M.2 NVMe Adapter without PCIe Bifurcation Function, PCIe 4.0/3.0 X8 Bandwidth ## Images ![PA21 Dual M.2 NVMe SSD to PCIe 4.0 X8, Bifurcation Motherboard Required - Image 1](https://m.media-amazon.com/images/I/71TW1Sr0BAL.jpg) ![PA21 Dual M.2 NVMe SSD to PCIe 4.0 X8, Bifurcation Motherboard Required - Image 2](https://m.media-amazon.com/images/I/71erl641ESL.jpg) ![PA21 Dual M.2 NVMe SSD to PCIe 4.0 X8, Bifurcation Motherboard Required - Image 3](https://m.media-amazon.com/images/I/71Y9+08B0eL.jpg) ![PA21 Dual M.2 NVMe SSD to PCIe 4.0 X8, Bifurcation Motherboard Required - Image 4](https://m.media-amazon.com/images/I/71cegB4ymZL.jpg) ![PA21 Dual M.2 NVMe SSD to PCIe 4.0 X8, Bifurcation Motherboard Required - Image 5](https://m.media-amazon.com/images/I/71BN5PUEfOL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works *by G***D on July 28, 2026* Installed on my pc for 2- 4tb cards and it worked as intended. I would recommend ### ⭐⭐⭐⭐⭐ It works - requires bifurcation motherboard *by D***A on September 6, 2023* Not sure if I spelled that right, bifurcation. This card does not do its own bifurcation. If your motherboard dose then make sure it can bifurcate by 4, the slot you put it into. I would have had to use this in the first x16 slot, which my GPU occupies, in order to get x4, but I couldn't fit the GPU into the second slot so I had to buy another .. well, 2 of these that actually DO bifurcation on the adapter itself. I ended up not using this, I'll figure out a use for it in the future, because my second slot cannot X4 bifurcate, only x2, so watch out for that. The first slot can do x4 but the second slot on the mobo is only x2, this is something I didn't expect to run into and I didn't find any information about it so you have that info here now. If you want to make sure all of your nvme show up in your OS, get a board that does the bifurcation on-board, not forcing the motherboard to do it as a feature. You'll be glad you spend the extra money and it will cost quite a bit more for that. Also, what I did was get pcie gen 3 cards with 2x nvme slots on each. I have pcie gen 4 but the way I set this up the nvme are just a tad bit faster than my gen 4 nvme I have on board. I did raid0 on the entire set which grants me a bit over full speed of my gen 4 drives. This was a cheaper alternative since I am doing raid0 but if you're not doing raid0 then it will be much slower if getting gen 4. Safest bet is gen 4 all the way through, of course. ### ⭐⭐⭐⭐⭐ Works as advertised *by A***F on October 4, 2025* Worked as advertised. Moved my GPU to the second slot in my ASUS ROG X870-A Gaming Wifi board and put this card into the primary PCIE 5.0 slot and set bios to bifurcate x4/x4/x4/x4. This freed up the other 3 NVMe slots on the mobo. Immediately recognized the three NVMe drives I mounted and they were running full x4 speed. Just remember that in order for this to work, your motherboard needs to support bifurcation. ## Frequently Bought Together - GLOTRENDS PA21 Dual M.2 NVMe to PCIe 4.0 X8 Adapter Without PCIe Bifurcation Function, Support 22110/2280/2260/2242/2230 Size (PCIe Bifurcation Motherboard is Required) - GLOTRENDS M.2 Heatsink for 2280 M.2 SSD, Fit for PC/PS5/PS5 Slim Installation, 22x70x3mm Aluminum Body, Including Thermal Pad (2 Packs) - GLOTRENDS PA41 Quad M.2 NVMe to PCIe 4.0 X16 Adapter Without PCIe Bifurcation Function, Support 22110/2280/2260/2242/2230 Size (PCIe Bifurcation Motherboard is Required) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/426032752-pa21-dual-m-2-nvme-ssd-to-pcie-4-0](https://www.desertcart.us/products/426032752-pa21-dual-m-2-nvme-ssd-to-pcie-4-0) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-16*