The KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops costs $0.0996/GB while the Silicon Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" Internal Solid State Drive SU256GBSS3A55S25AH costs $0.2304/GB. KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops offers 57% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops vs Silicon Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" Internal Solid State Drive SU256GBSS3A55S25AH — Which Is Better Value?
Specification Comparison
| Spec | KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops | Silicon Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" Internal Solid State Drive SU256GBSS3A55S25AH |
|---|---|---|
| Brand | KingSpec | SP Silicon Power |
| Capacity | 512 GB | 256 GB |
| $/GB | $0.0996 | $0.2304 |
| Price | $50.99 | $58.97 |
| Retailer | Amazon | Amazon |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops
Silicon Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" Internal Solid State Drive SU256GBSS3A55S25AH
Which Should You Buy?
Based on current pricing data, the KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops offers better value at $0.0996//GB compared to the Silicon Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" Internal Solid State Drive SU256GBSS3A55S25AH at $0.2304//GB — that's roughly 57% less per gigabyte.
The best deal for the KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops is $50.99 at Amazon, while the Silicon Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" Internal Solid State Drive SU256GBSS3A55S25AH starts at $58.97 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops and Silicon Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" Internal Solid State Drive SU256GBSS3A55S25AH product page for detailed specifications and price history.
Frequently Asked Questions
Is KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops or Silicon Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" Internal Solid State Drive SU256GBSS3A55S25AH a better deal?
As of May 2026, KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops offers better value at $0.0996//GB compared to Silicon Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" Internal Solid State Drive SU256GBSS3A55S25AH at $0.2304//GB. That is approximately 57% better value per gigabyte.
What is the price per GB of KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops?
The KingSpec MemoStone 512GB External SSD, USB 3.2 Gen2 Dual Type A/C Interface - Up to 540MB/s, Portable Solid State Drive Perfectly Compatible with Smartphones/Laptops/Tablets/Desktops is currently priced at $0.0996/GB ($50.99 for 512 GB) at Amazon.
Where can I buy Silicon Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" Internal Solid State Drive SU256GBSS3A55S25AH for the cheapest price?
The cheapest price for the Silicon Power 256GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" Internal Solid State Drive SU256GBSS3A55S25AH is $58.97 at Amazon, which works out to $0.2304/GB.