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Seagate Exos X20 18TB ST18000NM003D 7.2K RPM SATA 6Gb/s 512e 3.5" Enterprise HDD
Internal HDD Used CMR

Seagate Exos X20 18TB ST18000NM003D 7.2K RPM SATA 6Gb/s 512e 3.5" Enterprise HDD

Seagate · eBay · serverpartdeals

Price

$399.00

Free shipping

18 TB · per TB

$22.17/TB

From our price history · since Sep 2026

Above typical

79% of the 860 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 · #35 lowest $/TB of 44 Internal HDD listings in the tracker today · 23% above today's median ($18.00/TB)

Note: No warranty is listed for this drive. Run a full SMART test and a burn-in when it arrives.

Specs

Brand
Seagate
Model
ST18000NM003D
Product line
EXOS X
Capacity
18 TB
Interface
SATA
Form factor
Internal 3.5"
Recording
CMR
Read speed
285MB/s
Spindle speed
7200 RPM
Cache
256 MB

Listing details

Condition
Used
Fully Tested - may show minor SMART attributes from enterprise use. Capacity and performance unaffected. 90 Day Seller Warranty.
Store
eBay
Seller
serverpartdeals (17,627 ratings, 99.9% positive) Top Rated
Format
Buy It Now
Shipping
Free shipping
Est. delivery Nov 10 – Nov 12
Ships from
Sanford, Florida, US
Returns
Accepted within 30 calendar_days · seller pays return shipping
Quantity
50 sold · 1 available
Listed
Jul 18, 2025
eBay category
Computers/Tablets & Networking › Drives, Storage & Blank Media › Hard Drives (HDD, SSD & NAS) › Internal Hard Disk Drives
Tags
TopRatedPlus, ReturnsAccepted, TrustedSeller
Price checked
Nov 5, 2026 6:08 PM CST

Item specifics from the listing

Type
Internal Desktop Drive
Form Factor
3.5 in
Interface
SATA III
Features
Helium-sealed design, Idle Power Management, Power Efficiency Optimization, Digital environmental sensors
Color
Silver
Product Line
Exos X20
Compatible With
Desktops, Servers, NAS
Model
ST18000NM003D
Unit Quantity
1
Unit Type
Unit
Drive Type(s) Supported
HDD
Storage Capacity
18TB
Rotation Speed
7200 RPM
Cache
256 MB
Storage Format
HDD Only
Country of Origin
Thailand
Read Speed
285MB/s
Transfer Rate
6Gb/s
Warranty
90 Days Seller
Recording Technology
CMR
Hours
Fully Functional - SMART Attributes Present
MPN
ST18000NM003D, 3DL103-881
Brand
Seagate
Seller's description

ServerPartDeals Visit Store Seagate Exos X20 18TB ST18000NM003D 7.2K RPM SATA 6Gb/s 512e 3.5" Enterprise HDD ADDITIONAL INFORMATION Technical Specifications Brand Seagate Model ST18000NM003D Interface SATA III Storage Capacity 18TB Form Factor 3.5 in Cache 256 MB Rotation Speed 7200 RPM Recording Technology CMR Read Speed 285MB/s Transfer Rate 6Gb/s Product Condition Fully Functional - SMART Attributes Present Warranty Information 90 Days Seller Product Description Key Features Model: ST18000NM003D - Exos X20 -- 18TB SATA 3.5 Hard Drive Interface: SATA 6Gb/s with 7.2K RPM spindle speed for reliable high-throughput performance. Performance: Sustained data transfer rate up to 285 MB/s Recording Technology: CMR for reliable performance and compatibility Features: Helium-sealed design, Idle Power Management, Power Efficiency Optimization, digital environmental sensors Ideal Applications Enterprise servers & storage arrays Cloud & hyperscale deployments Backup & archiving solutions Big data and analytics workloads Fully Tested - may show minor SMART attributes from enterprise use. Capacity and performance unaffected. HIGH QUALITY Every Refurbished and Recertified drive is tested in house for quality FAST SHIPPING Free two day shipping within the continental U.S. CONTACT US If you need assistance, please contact us. FEATURED PRODUCTS WL OEM 16TB 7.2K RPM SAS 12Gb/s 3.5" HDD - Comparable to ST16000NM002G $379.00 WL OEM 16TB 7.2K RPM SAS 12Gb/s 3.5" HDD - Comparable to ST16000NM002G $329.00 Toshiba 14TB MG07 MG07ACA14TEY 7.2K RPM SATA 6Gb/s 512e 3.5" Enterprise HDD $379.00 Seagate Exos X16 16TB ST16000NM002G SAS 12Gb/s 512e 3.5" Enterprise Hard Drive $419.00 Dell 12TB 7.2K RPM SAS 12Gb/s 512e 3.5" HDD 0M1C0T G16 $499.00 Dell 12TB 7.2K RPM SAS 12Gb/s 512e 3.5" HDD 0M1C0T G13 $45…

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 Sep 13, 2026 · lowest $399.00 · highest $459.00 · 19 days of data

$459.00$429.00$399.00Sep 13, 2026Nov 5, 2026

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.

Disclaimer: This is a personal tracking tool I built for my own use, not a professional pricing or comparison service. Listings, prices, and outbound links are pulled from third-party sources and can be stale, inaccurate, or broken. I'm not responsible for their accuracy or where a link leads. Always verify details directly with the retailer or source before you rely on them.