18TB Seagate Exos X20 Hard Drive 3.5 SATA III HDD Enterprise HDD
Seagate · eBay · bigskyserversupply
Price
$409.99
Free shipping
18 TB · per TB
$22.78/TB
From our price history · since Sep 2026
Above typical85% of the 792 Internal HDD listings this site has logged went for less than this at their best
Typical: $17.50/TB · Lowest ever logged: $5.40/TB on Oct 8, 2026
Every time this tracker refreshes, the site records every listing it finds. These numbers compare this listing to all of them, each at the best price it reached. It's our own data, not copied from another site.
18TB hard drive price history → typical price, lowest we've seen and a daily chart
Right now · #34 lowest $/TB of 45 Internal HDD listings in the tracker today · 18% above today's median ($19.38/TB)
Specs
- Brand
- Seagate
- Model
- ST18000NM003D
- Product line
- EXOS X
- Capacity
- 18 TB
- Interface
- SATA
- Form factor
- Internal 3.5"
- Recording
- CMR
- Spindle speed
- 7200 RPM
- Cache
- 256 MB
Listing details
- Condition
- Used
Excellent condition. Fully tested with no bad sectors and wiped with DoD standard. Under 3 years of power on time. - Store
- eBay
- Seller
- bigskyserversupply (174 ratings, 98.8% positive) Top Rated
- Format
- Buy It Now
- Shipping
- Free shipping
Est. delivery Nov 4 – Nov 5 - Ships from
- Bozeman, Montana, US
- Returns
- Accepted within 30 calendar_days · seller pays return shipping
- Quantity
- 25 sold
- Listed
- Aug 13, 2026
- eBay category
- Computers/Tablets & Networking › Drives, Storage & Blank Media › Hard Drives (HDD, SSD & NAS) › Internal Hard Disk Drives
- Tags
- TopRatedPlus, ReturnsAccepted
- Price checked
- Nov 2, 2026 3:06 PM CST
Item specifics from the listing
- Compatible With
- Mac, PC
- Color
- Silver
- MPN
- ST18000NM003D
- Item Length
- 5.8"
- Rotation Speed
- 7200 RPM
- Brand
- Seagate
- Form Factor
- 3.5 in
- Type
- Internal Desktop Drive
- Unit Type
- Unit
- Drive Type(s) Supported
- HDD
- Item Height
- 1"
- Model
- Seagate Exos X20
- Storage Format
- HDD Only
- Features
- Hot Plug Support, Hot Swap
- Storage Capacity
- 18 TB
- Unit Quantity
- 1
- Interface
- SATA III
- Country of Origin
- Thailand
- Item Width
- 4"
- Cache
- 256 MB
- Product Line
- Exos
Seller's description
SEAGATE EXOS X20 18TB SATA ST18000NM003D 3.5" Enterprise HDD 7.2K 6Gbps Manufacturer: SEAGATE Model Part Number: ST18000NM003D Data Sheet: exos-x20-channel-DS2080-2111GB-en_GB.pdfFirmware: SN03 Data Sheet provided for your convenience; any claimed warranties therein are not offered for this product. No affiliations with Seagate Technology LLC. Rated for full 24/7 operation, ideal for NAS servers. Lab tests showed excellent drive health. Verification and integrity tests reveled no bad sectors. Eight full read and write passes over the full drive were performed to identify any sector errors or other data instability with no errors detected. You will receive what is pictured in the product photos. No extra parts will be sent with the listed item. We do not guarantee you will receive the exact Serial Number, Model Number, and SMART Data stats as the item in the photos.Please message us if you need more information for an item.
Excerpt in the seller's own words, formatting removed. The full listing has the complete text and terms.
Price history for this listing
First seen Nov 2, 2026 · lowest $409.99 · highest $409.99 · 1 day of data
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Pricing data courtesy of PricePerGig.com; listing details from eBay, refreshed every few hours. Prices and availability change fast, so the retailer's own page is always the final word.