The KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers costs $0.0859/GB while the Western Digital WD_BLACK SN770 M.2 2280 500GB PCIe Gen4 16GT/s, up to 4 Lanes Internal Solid State Drive (SSD) WDS500G3X0E costs $0.3093/GB. KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers offers 72% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers vs Western Digital WD_BLACK SN770 M.2 2280 500GB PCIe Gen4 16GT/s, up to 4 Lanes Internal Solid State Drive (SSD) WDS500G3X0E — Which Is Better Value?
Specification Comparison
| Spec | KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers | Western Digital WD_BLACK SN770 M.2 2280 500GB PCIe Gen4 16GT/s, up to 4 Lanes Internal Solid State Drive (SSD) WDS500G3X0E |
|---|---|---|
| Brand | KingSpec | Western Digital |
| Capacity | 256GB | 500GB |
| $/GB | $0.0859 | $0.3093 |
| Price | $21.99 | $154.64 |
| Retailer | Newegg | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | nvme |
Price Across Retailers
KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers
Western Digital WD_BLACK SN770 M.2 2280 500GB PCIe Gen4 16GT/s, up to 4 Lanes Internal Solid State Drive (SSD) WDS500G3X0E
Which Should You Buy?
Based on current pricing data, the KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers offers better value at $0.0859//GB compared to the Western Digital WD_BLACK SN770 M.2 2280 500GB PCIe Gen4 16GT/s, up to 4 Lanes Internal Solid State Drive (SSD) WDS500G3X0E at $0.3093//GB — that's roughly 72% less per gigabyte.
The best deal for the KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers is $21.99 at Newegg, while the Western Digital WD_BLACK SN770 M.2 2280 500GB PCIe Gen4 16GT/s, up to 4 Lanes Internal Solid State Drive (SSD) WDS500G3X0E starts at $154.64 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers and Western Digital WD_BLACK SN770 M.2 2280 500GB PCIe Gen4 16GT/s, up to 4 Lanes Internal Solid State Drive (SSD) WDS500G3X0E product page for detailed specifications and price history.
Frequently Asked Questions
Is KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers or Western Digital WD_BLACK SN770 M.2 2280 500GB PCIe Gen4 16GT/s, up to 4 Lanes Internal Solid State Drive (SSD) WDS500G3X0E a better deal?
As of June 2026, KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers offers better value at $0.0859//GB compared to Western Digital WD_BLACK SN770 M.2 2280 500GB PCIe Gen4 16GT/s, up to 4 Lanes Internal Solid State Drive (SSD) WDS500G3X0E at $0.3093//GB. That is approximately 72% better value per gigabyte.
What is the price per GB of KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers?
The KingSpec MemoStone 256GB 2-in-1 USB 3.2 Portable SSD - High-Speed 490 MB/s Read, Type-C Thumb Drive for Android and USB-C Computers is currently priced at $0.0859/GB ($21.99 for 256GB) at Newegg.
Where can I buy Western Digital WD_BLACK SN770 M.2 2280 500GB PCIe Gen4 16GT/s, up to 4 Lanes Internal Solid State Drive (SSD) WDS500G3X0E for the cheapest price?
The cheapest price for the Western Digital WD_BLACK SN770 M.2 2280 500GB PCIe Gen4 16GT/s, up to 4 Lanes Internal Solid State Drive (SSD) WDS500G3X0E is $154.64 at Newegg, which works out to $0.3093/GB.