18TB hard drive prices, tracked daily.
Every 18TB shuckable desktop external we track (WD Elements, WD My Book), ranked by dollars per terabyte with 90-day price history. Below it: manufacturer-recertified bare enterprise drives at the same capacity.
Shuckable 18TB externals
Lowest $/TB first. Each button opens the retailer's live price.
| Rank | Product | TB | $/TB | 90 days | Amazon | Share |
|---|---|---|---|---|---|---|
| 1 | WD Elements · 18TB | 18 | unit price$39.72per TB, typical price | 90-day price | Amazon $715.00 seen View on Amazon | |
| 2 | WD My Book · 18TB | 18 | unit price$43.33per TB, expensive | 90-day price | Amazon $780.00 seen View on Amazon |
Prices checked Nov 3, 6:08 PM CT. Anything older than 24 hours is hidden, and the retailer's page always has the live price.
As an Amazon Associate I earn from qualifying purchases. The retailer buttons are paid affiliate links, so we may earn a commission on a qualifying purchase at no extra cost to you. Prices and availability are accurate only as of the date/time shown and are subject to change; the price and availability on the retailer's own site at the time of purchase is the one that applies.
Recertified bare drives at 18TB
Listed as Manufacturer Recertified at ServerPartDeals — no shucking required. Condition and warranty are per the seller's listing.
| Drive | TB | Interface | $/TB | Price | Listing |
|---|---|---|---|---|---|
| Western DigitalUltrastar DC HC550 · 18TB SATA | 18 | SATA | unit price$28.28per TB, good value | $509.00 | View listing |
| Western DigitalUltrastar DC HC550 · 18TB SATA | 18 | SATA | unit price$28.83per TB, good value | $519.00 | View listing |
| Western DigitalUltrastar DC HC550 · 18TB SATA | 18 | SATA | unit price$28.83per TB, good value | $519.00 | View listing |
| Western DigitalUltrastar HC550 · 18TB SAS | 18 | SAS | unit price$32.17per TB, good value | $579.00 | View listing |
| SeagateExos X18 · 18TB SAS | 18 | SAS | unit price$32.72per TB, good value | $589.00 | View listing |
| SeagateExos X20 · 18TB SATA | 18 | SATA | unit price$34.94per TB, typical price | $629.00 | View listing |
Bare-drive listings and prices read from ServerPartDeals Nov 3, 2026, 6:17 AM. Condition shown is the seller's own listing label. These are plain links — DealBytes has no affiliate relationship with ServerPartDeals and earns nothing from them.