The WD 20TB My Book Duo Desktop RAID External Hard Drive 256-Bit AES Encryption - USB 3.2 Gen1 (WDBFBE0200JBK-NESN) costs $0.0581/GB while the Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 costs $0.0370/GB. Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 offers 36% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD 20TB My Book Duo Desktop RAID External Hard Drive 256-Bit AES Encryption - USB 3.2 Gen1 (WDBFBE0200JBK-NESN) vs Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 — Which Is Better Value?
Prices refresh twice daily; the final price appears at the retailer's checkout. We may earn a commission from retailer links, at no cost to you; it never affects rankings.
Specification Comparison
| Spec | WD 20TB My Book Duo Desktop RAID External Hard Drive 256-Bit AES Encryption - USB 3.2 Gen1 (WDBFBE0200JBK-NESN) | Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 |
|---|---|---|
| Brand | Western Digital | Seagate |
| Capacity | 20TB | 18TB |
| $/GB | $0.0581 | $0.0370 |
| Price | $1162.21 | $666.10 |
| 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 Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 offers better value at $0.0370//GB compared to the WD 20TB My Book Duo Desktop RAID External Hard Drive 256-Bit AES Encryption - USB 3.2 Gen1 (WDBFBE0200JBK-NESN) at $0.0581//GB — that's roughly 36% less per gigabyte.
The best deal for the Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 is $666.10 at Newegg, while the WD 20TB My Book Duo Desktop RAID External Hard Drive 256-Bit AES Encryption - USB 3.2 Gen1 (WDBFBE0200JBK-NESN) starts at $1162.21 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD 20TB My Book Duo Desktop RAID External Hard Drive 256-Bit AES Encryption - USB 3.2 Gen1 (WDBFBE0200JBK-NESN) and Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 product page for detailed specifications and price history.
Frequently Asked Questions
Is WD 20TB My Book Duo Desktop RAID External Hard Drive 256-Bit AES Encryption - USB 3.2 Gen1 (WDBFBE0200JBK-NESN) or Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 a better deal?
As of August 2026, Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 offers better value at $0.0370//GB compared to WD 20TB My Book Duo Desktop RAID External Hard Drive 256-Bit AES Encryption - USB 3.2 Gen1 (WDBFBE0200JBK-NESN) at $0.0581//GB. That is approximately 36% better value per gigabyte.
What is the price per GB of WD 20TB My Book Duo Desktop RAID External Hard Drive 256-Bit AES Encryption - USB 3.2 Gen1 (WDBFBE0200JBK-NESN)?
The WD 20TB My Book Duo Desktop RAID External Hard Drive 256-Bit AES Encryption - USB 3.2 Gen1 (WDBFBE0200JBK-NESN) is currently priced at $0.0581/GB ($1162.21 for 20TB) at Newegg.
Where can I buy Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 for the cheapest price?
The cheapest price for the Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 is $666.10 at Newegg, which works out to $0.0370/GB.