Home › Prices › Hard Drives & SSDs › UnionSine Desktop External Hard Drive 10TB, USB C HDD Storage HD3510
UnionSine Desktop External Hard Drive 10TB, USB C HDD Storage HD3510
External HDD Used

UnionSine Desktop External Hard Drive 10TB, USB C HDD Storage HD3510

eBay · joshuahedrick

Price

$220.00

$19.00 shipping

10 TB · per TB

$22.00/TB

$23.90/TB with shipping

From our price history · since Sep 2026

Above typical

64% of the 590 External HDD listings this site has logged went for less than this at their best

Typical: $20.00/TB · Lowest ever logged: $6.36/TB on Sep 26, 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.

10TB external hard drive price history → typical price, lowest we've seen and a daily chart

Right now · #11 lowest $/TB of 32 External HDD listings in the tracker today · 9% below today's median ($24.29/TB)

Note: No warranty is listed for this drive. Run a full SMART test and a burn-in when it arrives.
Note: The seller does not accept returns. eBay Money Back Guarantee still covers items that arrive not as described.

Specs

Brand
Western Digital UnionSine
Model
HD3510
Capacity
10 TB
Interface
USB
Form factor
External 3.5"
Spindle speed
7200 RPM

Listing details

Condition
Used
Store
eBay
Seller
joshuahedrick (150 ratings, 100% positive)
Format
Buy It Now · Accepts offers
Shipping
$19.00 shipping
Est. delivery Nov 6 – Nov 13
Ships from
Roseville, California, US
Returns
Not accepted
Quantity
0 sold · 1 available
Listed
Oct 22, 2026
eBay category
Computers/Tablets & Networking › Drives, Storage & Blank Media › Hard Drives (HDD, SSD & NAS) › External Hard Disk Drives
Tags
BestOffer
Price checked
Nov 1, 2026 6:28 PM CST

Item specifics from the listing

Compatible With
Mac
USB Specification
USB 3.0
Color
Black
Rotation Speed
7200 RPM
Brand
Western Digital UnionSine
Form Factor
3.5 in
Type
External Drive
Drive Type(s) Supported
HDD
Transfer Rate
40 Mbps
Model
HD3510
Storage Format
HDD Only
Storage Capacity
10 TB
Interface
USB-C
Seller's description

I'm selling a used WD UnionSine 10tb external hard drive, model HD3510. This hard drive was used for long term data storage, but I no longer need these on hand. I do have several additional types of HDDs available as well.

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 1, 2026 · lowest $220.00 · highest $220.00 · 1 day of data

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.