The KingSpec Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content... costs $0.0842/GB while the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) costs $0.0850/GB. KingSpec Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content... offers 1% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
KingSpec Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content... vs SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) — Which Is Better Value?
Specification Comparison
| Spec | KingSpec Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content... | SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) |
|---|---|---|
| Brand | KingSpec | SP Silicon Power |
| Capacity | 4TB | 4 TB |
| $/GB | $0.0842 | $0.0850 |
| Price | $336.99 | $339.97 |
| Retailer | Newegg | Amazon |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
KingSpec Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content...
SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25)
Which Should You Buy?
Based on current pricing data, the KingSpec Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content... offers better value at $0.0842//GB compared to the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) at $0.0850//GB — that's roughly 1% less per gigabyte.
The best deal for the KingSpec Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content... is $336.99 at Newegg, while the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) starts at $339.97 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 Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content... and SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) product page for detailed specifications and price history.
Frequently Asked Questions
Is KingSpec Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content... or SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) a better deal?
As of July 2026, KingSpec Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content... offers better value at $0.0842//GB compared to SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) at $0.0850//GB. That is approximately 1% better value per gigabyte.
What is the price per GB of KingSpec Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content...?
The KingSpec Z5 Portable SSD With RGB 4TB - Up to 2100 MB/s - USB 3.2 Gen 2 - Type-c, 20Gbps, External Solid State Drive, for Photographers, Content... is currently priced at $0.0842/GB ($336.99 for 4TB) at Newegg.
Where can I buy SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) for the cheapest price?
The cheapest price for the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) is $339.97 at Amazon, which works out to $0.0850/GB.