The SANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black costs $0.1125/GB while the Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902 costs $0.0933/GB. Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902 offers 17% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black vs Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902 — Which Is Better Value?
Specification Comparison
| Spec | SANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black | Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902 |
|---|---|---|
| Brand | SanDisk | Crucial |
| Capacity | 4 TB | 4 TB |
| $/GB | $0.1125 | $0.0933 |
| Price | $449.99 | $373.29 |
| Retailer | Best Buy | Amazon |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
SANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black
Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902
Which Should You Buy?
Based on current pricing data, the Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902 offers better value at $0.0933//GB compared to the SANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black at $0.1125//GB — that's roughly 17% less per gigabyte.
The best deal for the Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902 is $373.29 at Amazon, while the SANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black starts at $449.99 at Best Buy.
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 4TB External USB-C NVMe SSD - Black and Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902 product page for detailed specifications and price history.
Frequently Asked Questions
Is SANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black or Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902 a better deal?
As of May 2026, Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902 offers better value at $0.0933//GB compared to SANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black at $0.1125//GB. That is approximately 17% better value per gigabyte.
What is the price per GB of SANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black?
The SANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black is currently priced at $0.1125/GB ($449.99 for 4 TB) at Best Buy.
Where can I buy Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902 for the cheapest price?
The cheapest price for the Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902 is $373.29 at Amazon, which works out to $0.0933/GB.