The KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop... costs $0.0790/GB while the SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAH-000E0 costs $0.2562/GB. KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop... offers 69% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop... vs SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAH-000E0 — Which Is Better Value?
Specification Comparison
| Spec | KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop... | SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAH-000E0 |
|---|---|---|
| Brand | KingSpec | SanDisk |
| Capacity | 4TB | 8TB |
| $/GB | $0.0790 | $0.2562 |
| Price | $315.99 | $2049.99 |
| Retailer | Newegg | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop...
SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAH-000E0
Which Should You Buy?
Based on current pricing data, the KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop... offers better value at $0.0790//GB compared to the SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAH-000E0 at $0.2562//GB — that's roughly 69% less per gigabyte.
The best deal for the KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop... is $315.99 at Newegg, while the SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAH-000E0 starts at $2049.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop... and SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAH-000E0 product page for detailed specifications and price history.
Frequently Asked Questions
Is KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop... or SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAH-000E0 a better deal?
As of July 2026, KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop... offers better value at $0.0790//GB compared to SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAH-000E0 at $0.2562//GB. That is approximately 69% better value per gigabyte.
What is the price per GB of KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop...?
The KingSpec P3 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 520MB/s, laptop PC Desktop... is currently priced at $0.0790/GB ($315.99 for 4TB) at Newegg.
Where can I buy SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAH-000E0 for the cheapest price?
The cheapest price for the SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAH-000E0 is $2049.99 at Newegg, which works out to $0.2562/GB.