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 Intel Optane DC P5800X Series 400GB, 2.5' x 15mm, U.2, PCIe 4.0 x4, 3D XPoint Solid State Drive (SSD) SSDPF21Q400GB01 costs $2.8434/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 97% 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 Intel Optane DC P5800X Series 400GB, 2.5' x 15mm, U.2, PCIe 4.0 x4, 3D XPoint Solid State Drive (SSD) SSDPF21Q400GB01 — 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 | Intel Optane DC P5800X Series 400GB, 2.5' x 15mm, U.2, PCIe 4.0 x4, 3D XPoint Solid State Drive (SSD) SSDPF21Q400GB01 |
|---|---|---|
| Brand | KingSpec | Intel |
| Capacity | 256GB | 400GB |
| $/GB | $0.0859 | $2.8434 |
| Price | $21.99 | $1137.35 |
| Retailer | Newegg | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
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
Intel Optane DC P5800X Series 400GB, 2.5' x 15mm, U.2, PCIe 4.0 x4, 3D XPoint Solid State Drive (SSD) SSDPF21Q400GB01
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 Intel Optane DC P5800X Series 400GB, 2.5' x 15mm, U.2, PCIe 4.0 x4, 3D XPoint Solid State Drive (SSD) SSDPF21Q400GB01 at $2.8434//GB — that's roughly 97% 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 Intel Optane DC P5800X Series 400GB, 2.5' x 15mm, U.2, PCIe 4.0 x4, 3D XPoint Solid State Drive (SSD) SSDPF21Q400GB01 starts at $1137.35 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 Intel Optane DC P5800X Series 400GB, 2.5' x 15mm, U.2, PCIe 4.0 x4, 3D XPoint Solid State Drive (SSD) SSDPF21Q400GB01 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 Intel Optane DC P5800X Series 400GB, 2.5' x 15mm, U.2, PCIe 4.0 x4, 3D XPoint Solid State Drive (SSD) SSDPF21Q400GB01 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 Intel Optane DC P5800X Series 400GB, 2.5' x 15mm, U.2, PCIe 4.0 x4, 3D XPoint Solid State Drive (SSD) SSDPF21Q400GB01 at $2.8434//GB. That is approximately 97% 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 Intel Optane DC P5800X Series 400GB, 2.5' x 15mm, U.2, PCIe 4.0 x4, 3D XPoint Solid State Drive (SSD) SSDPF21Q400GB01 for the cheapest price?
The cheapest price for the Intel Optane DC P5800X Series 400GB, 2.5' x 15mm, U.2, PCIe 4.0 x4, 3D XPoint Solid State Drive (SSD) SSDPF21Q400GB01 is $1137.35 at Newegg, which works out to $2.8434/GB.