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Seagate X20z 20TB ST20000NM001J 7.2K RPM SATA 6Gb/s Host-Managed SMR 3.5" HDD
Internal HDD Used SMR

Seagate X20z 20TB ST20000NM001J 7.2K RPM SATA 6Gb/s Host-Managed SMR 3.5" HDD

Seagate · eBay · 8ten1944

Price

$410.99

$4.95 shipping

20 TB · per TB

$20.55/TB

$20.80/TB with shipping

From our price history · since Sep 2026

Above typical

68% of the 980 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.

20TB hard drive price history → typical price, lowest we've seen and a daily chart

Right now · #26 lowest $/TB of 45 Internal HDD listings in the tracker today · 10% above today's median ($18.75/TB)

Note: Tagged SMR (shingled recording). Fine for backups and archives, but a poor pick for NAS/RAID, where rebuilds can crawl.
Note: No warranty is listed for this drive. Run a full SMART test and a burn-in when it arrives.

Specs

Brand
Seagate
Model
ST20000NM001J
Product line
Exos Enterprise X20z
Capacity
20 TB
Interface
SATA
Form factor
Internal 3.5"
Recording
SMR
Read speed
270 MB/s
Spindle speed
7200 RPM
Cache
256 MB

Listing details

Condition
Used
Store
eBay
Seller
8ten1944 (418,070 ratings, 99.8% positive)
Format
Buy It Now
Shipping
$4.95 shipping
Est. delivery Nov 16 – Nov 19
Ships from
Cass City, Michigan, US
Returns
Accepted within 30 calendar_days · buyer pays return shipping
Quantity
0 sold · 1 available
Listed
Nov 9, 2026
eBay category
Computers/Tablets & Networking › Drives, Storage & Blank Media › Hard Drives (HDD, SSD & NAS) › Internal Hard Disk Drives
Price checked
Nov 12, 2026 3:06 PM CST

Item specifics from the listing

Brand
Seagate
Type
Internal Desktop Drive
Form Factor
3.5 in
Interface
SATA III
Features
PowerBalance, Host-Managed SMR
Color
Silver
Product Line
Exos Enterprise X20z
Compatible With
Memory Vault, Server, Data Center
Model
ST20000NM001J
MPN
2U6101-114, ST20000NM001J
Unit Quantity
1
Unit Type
Unit
Drive Type(s) Supported
HDD
Storage Capacity
20 TB
Rotation Speed
7200 RPM
Cache
256 MB
Storage Format
HDD Only
Country of Origin
Thailand
Transfer Rate
6Gb/s
Read Speed
270 MB/s
Seller's description

Opened packaging/return, lightly used NOTE: HM-SMR Zoned Storage. Not compatible with standard systems. Massive 20TB capacity for bulk storage SATA 6Gb/s interface for broad compatibility Optimized for sequential write workloads in enterprise storage environments Host-Managed SMR technology for ultra-high data density Enterprise-grade reliability for 24/7 operation Seagate X20z 20TB ST20000NM001J 7.2K RPM SATA 6Gb/s Host-Managed SMR 3.5" HDD Description Our SKU: 15072531 Item Brand: Seagate Item MPN: 534634 Opened packaging/return, lightly used NOTE: HM-SMR Zoned Storage. Not compatible with standard systems. Massive 20TB capacity for bulk storage SATA 6Gb/s interface for broad compatibility Optimized for sequential write workloads in enterprise storage environments Host-Managed SMR technology for ultra-high data density Enterprise-grade reliability for 24/7 operation Please contact us with any questions regarding a past or future purchase. Check out our store for more great products and deals. Warranty Our inventory is purchased from various manufacturers, retailers, and third-party sources. We do not represent or make any claim regarding manufacturer warranties. We make every possible attempt to accurately describe the inventory we sell and stand behind it. We offer a no-questions-asked 30-day return policy on everything we sell, provided the item is returned in the same condition it was sold in. If you have any issue with your purchase, please contact us so we can help make it right. Shipping All items are carefully packed and properly protected for shipment. We use several carriers and select the most practical option based on the item, destination, handling time, and estimated transit time. Please make every attempt to verify that the part or product being purchase…

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 9, 2026 · lowest $410.99 · highest $436.91 · 4 days of data

$436.91$423.95$410.99Nov 9, 2026Nov 12, 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.