The SANDISK - Extreme Portable 8TB External USB-C NVMe SSD - Black costs $0.1050/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) SDSP81800TAN-000E0 costs $0.3312/GB. SANDISK - Extreme Portable 8TB External USB-C NVMe SSD - Black offers 68% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SANDISK - Extreme Portable 8TB External USB-C NVMe SSD - Black 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) SDSP81800TAN-000E0 — Which Is Better Value?
Specification Comparison
| Spec | SANDISK - Extreme Portable 8TB External USB-C NVMe SSD - Black | SanDisk Optimus GX PRO 850X M.2 2280-D5-M 8TB PCI-Express 4.0 x4 3D NAND TLC Internal Solid State Drive (SSD) SDSP81800TAN-000E0 |
|---|---|---|
| Brand | SanDisk | SanDisk |
| Capacity | 8 TB | 8TB |
| $/GB | $0.1050 | $0.3312 |
| Price | $839.99 | $2649.99 |
| Retailer | Best Buy | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the SANDISK - Extreme Portable 8TB External USB-C NVMe SSD - Black offers better value at $0.1050//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) SDSP81800TAN-000E0 at $0.3312//GB — that's roughly 68% less per gigabyte.
The best deal for the SANDISK - Extreme Portable 8TB External USB-C NVMe SSD - Black is $839.99 at Best Buy, 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) SDSP81800TAN-000E0 starts at $2649.99 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 - Extreme Portable 8TB External USB-C NVMe SSD - Black 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) SDSP81800TAN-000E0 product page for detailed specifications and price history.
Frequently Asked Questions
Is SANDISK - Extreme Portable 8TB External USB-C NVMe SSD - Black 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) SDSP81800TAN-000E0 a better deal?
As of June 2026, SANDISK - Extreme Portable 8TB External USB-C NVMe SSD - Black offers better value at $0.1050//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) SDSP81800TAN-000E0 at $0.3312//GB. That is approximately 68% better value per gigabyte.
What is the price per GB of SANDISK - Extreme Portable 8TB External USB-C NVMe SSD - Black?
The SANDISK - Extreme Portable 8TB External USB-C NVMe SSD - Black is currently priced at $0.1050/GB ($839.99 for 8 TB) at Best Buy.
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) SDSP81800TAN-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) SDSP81800TAN-000E0 is $2649.99 at Newegg, which works out to $0.3312/GB.