The SanDisk Optimus GX PRO 850X M.2 2280-D5-M 4TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81400TAH-000E0 costs $0.2575/GB while the KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... costs $0.0802/GB. KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... offers 69% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SanDisk Optimus GX PRO 850X M.2 2280-D5-M 4TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81400TAH-000E0 vs KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... — Which Is Better Value?
Specification Comparison
| Spec | SanDisk Optimus GX PRO 850X M.2 2280-D5-M 4TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81400TAH-000E0 | KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... |
|---|---|---|
| Brand | SanDisk | KingSpec |
| Capacity | 4TB | 4TB |
| $/GB | $0.2575 | $0.0802 |
| Price | $1029.99 | $320.99 |
| Retailer | Newegg | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
SanDisk Optimus GX PRO 850X M.2 2280-D5-M 4TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81400TAH-000E0
KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop...
Which Should You Buy?
Based on current pricing data, the KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... offers better value at $0.0802//GB compared to the SanDisk Optimus GX PRO 850X M.2 2280-D5-M 4TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81400TAH-000E0 at $0.2575//GB — that's roughly 69% less per gigabyte.
The best deal for the KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... is $320.99 at Newegg, while the SanDisk Optimus GX PRO 850X M.2 2280-D5-M 4TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81400TAH-000E0 starts at $1029.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each SanDisk Optimus GX PRO 850X M.2 2280-D5-M 4TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81400TAH-000E0 and KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... product page for detailed specifications and price history.
Frequently Asked Questions
Is SanDisk Optimus GX PRO 850X M.2 2280-D5-M 4TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81400TAH-000E0 or KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... a better deal?
As of July 2026, KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... offers better value at $0.0802//GB compared to SanDisk Optimus GX PRO 850X M.2 2280-D5-M 4TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81400TAH-000E0 at $0.2575//GB. That is approximately 69% better value per gigabyte.
What is the price per GB of SanDisk Optimus GX PRO 850X M.2 2280-D5-M 4TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81400TAH-000E0?
The SanDisk Optimus GX PRO 850X M.2 2280-D5-M 4TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81400TAH-000E0 is currently priced at $0.2575/GB ($1029.99 for 4TB) at Newegg.
Where can I buy KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... for the cheapest price?
The cheapest price for the KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... is $320.99 at Newegg, which works out to $0.0802/GB.