The Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive costs $0.0300/GB while the SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive costs $0.0681/GB. Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive offers 56% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive vs SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive — Which Is Better Value?
Specification Comparison
| Spec | Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive | SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive |
|---|---|---|
| Brand | Toshiba | SanDisk |
| Capacity | 20TB | 18TB |
| $/GB | $0.0300 | $0.0681 |
| Price | $598.99 | $1224.99 |
| 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 20TB X300 Performance 3.5' CMR Internal Hard Drive offers better value at $0.0300//GB compared to the SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive at $0.0681//GB — that's roughly 56% less per gigabyte.
The best deal for the Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive is $598.99 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 Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive and SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive or SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive a better deal?
As of June 2026, Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive offers better value at $0.0300//GB compared to SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive at $0.0681//GB. That is approximately 56% better value per gigabyte.
What is the price per GB of Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive?
The Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive is currently priced at $0.0300/GB ($598.99 for 20TB) at Newegg.
Where can I buy SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive for the cheapest price?
The cheapest price for the SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive is $1224.99 at Newegg, which works out to $0.0681/GB.