The Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive costs $0.0300/GB while the WD My Book 18TB USB 3.0, Micro-B External Desktop Hard Drive Black costs $0.0419/GB. Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive offers 29% 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 WD My Book 18TB USB 3.0, Micro-B External Desktop Hard Drive Black — Which Is Better Value?
WD My Book 18TB USB 3.0, Micro-B External Desktop Hard Drive Black
Specification Comparison
| Spec | Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive | WD My Book 18TB USB 3.0, Micro-B External Desktop Hard Drive Black |
|---|---|---|
| Brand | Toshiba | Western Digital |
| Capacity | 20TB | 18TB |
| $/GB | $0.0300 | $0.0419 |
| Price | $598.99 | $754.99 |
| 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 WD My Book 18TB USB 3.0, Micro-B External Desktop Hard Drive Black at $0.0419//GB — that's roughly 29% 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 WD My Book 18TB USB 3.0, Micro-B External Desktop Hard Drive Black starts at $754.99 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 WD My Book 18TB USB 3.0, Micro-B External Desktop Hard Drive Black product page for detailed specifications and price history.
Frequently Asked Questions
Is Toshiba 20TB X300 Performance 3.5' CMR Internal Hard Drive or WD My Book 18TB USB 3.0, Micro-B External Desktop Hard Drive Black 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 WD My Book 18TB USB 3.0, Micro-B External Desktop Hard Drive Black at $0.0419//GB. That is approximately 29% 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 WD My Book 18TB USB 3.0, Micro-B External Desktop Hard Drive Black for the cheapest price?
The cheapest price for the WD My Book 18TB USB 3.0, Micro-B External Desktop Hard Drive Black is $754.99 at Newegg, which works out to $0.0419/GB.