The WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s Write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2XHE costs $0.1500/GB while the M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260... costs $0.0050/GB. M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260... offers 97% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s Write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2XHE vs M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260... — Which Is Better Value?
Specification Comparison
| Spec | WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s Write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2XHE | M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260... |
|---|---|---|
| Brand | SanDisk | M.2 |
| Capacity | 4 TB | 4TB |
| $/GB | $0.1500 | $0.0050 |
| Price | $599.99 | $19.99 |
| Retailer | Amazon | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | nvme | nvme |
Price Across Retailers
WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s Write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2XHE
M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260...
Which Should You Buy?
Based on current pricing data, the M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260... offers better value at $0.0050//GB compared to the WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s Write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2XHE at $0.1500//GB — that's roughly 97% less per gigabyte.
The best deal for the M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260... is $19.99 at Newegg, while the WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s Write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2XHE starts at $599.99 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s Write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2XHE and M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260... product page for detailed specifications and price history.
Frequently Asked Questions
Is WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s Write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2XHE or M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260... a better deal?
As of June 2026, M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260... offers better value at $0.0050//GB compared to WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s Write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2XHE at $0.1500//GB. That is approximately 97% better value per gigabyte.
What is the price per GB of WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s Write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2XHE?
The WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s Write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2XHE is currently priced at $0.1500/GB ($599.99 for 4 TB) at Amazon.
Where can I buy M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260... for the cheapest price?
The cheapest price for the M.2 to USB Adapter, RIITOP M.2 NVME SATA SSD to USB3.1 Gen2 10Gbps, USB to NVME PCIe SSD Reader M Key & B+M Key Max 4TB Support UASP for 2280 2260... is $19.99 at Newegg, which works out to $0.0050/GB.