The SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive costs $0.0681/GB while the Toshiba 16TB X300 Performance 3.5' CMR Internal Hard Drive costs $0.0252/GB. Toshiba 16TB X300 Performance 3.5' CMR Internal Hard Drive offers 63% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive vs Toshiba 16TB X300 Performance 3.5' CMR Internal Hard Drive — Which Is Better Value?
Specification Comparison
| Spec | SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive | Toshiba 16TB X300 Performance 3.5' CMR Internal Hard Drive |
|---|---|---|
| Brand | SanDisk | Toshiba |
| Capacity | 18TB | 16TB |
| $/GB | $0.0681 | $0.0252 |
| Price | $1224.99 | $403.67 |
| Retailer | Newegg | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Toshiba 16TB X300 Performance 3.5' CMR Internal Hard Drive offers better value at $0.0252//GB compared to the SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive at $0.0681//GB — that's roughly 63% less per gigabyte.
The best deal for the Toshiba 16TB X300 Performance 3.5' CMR Internal Hard Drive is $403.67 at Newegg, while the SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive starts at $1224.99 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 Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive and Toshiba 16TB X300 Performance 3.5' CMR Internal Hard Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive or Toshiba 16TB X300 Performance 3.5' CMR Internal Hard Drive a better deal?
As of June 2026, Toshiba 16TB X300 Performance 3.5' CMR Internal Hard Drive offers better value at $0.0252//GB compared to SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive at $0.0681//GB. That is approximately 63% better value per gigabyte.
What is the price per GB of SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive?
The SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive is currently priced at $0.0681/GB ($1224.99 for 18TB) at Newegg.
Where can I buy Toshiba 16TB X300 Performance 3.5' CMR Internal Hard Drive for the cheapest price?
The cheapest price for the Toshiba 16TB X300 Performance 3.5' CMR Internal Hard Drive is $403.67 at Newegg, which works out to $0.0252/GB.