We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
3.5 inch silver metal hard drive with circuit board visible

Seagate

Seagate Exos 7E8 ST3000NM000A 3 TB 7200 RPM 256MB SATA internal hard drive

SKU CH-YSNT-Y18G3 MPN ST3000NM000A

3 TB enterprise SATA hard drive with 7200 RPM and 256 MB cache, rated for 550 TB annual workload and 2 million hour MTBF

  • Total capacity3 TB
  • Interface typeSATA 6.0Gb/s
  • Rotational speed7,200 RPM
  • Cache memory256 MB
  • Key featuresHard Drive

Capacity 3TB

  • 7200 RPM and 256 MB cache deliver fast data access
  • SATA 6.0 Gb/s interface enables high-throughput transfers
  • 3 TB capacity stores large enterprise datasets
  • 550 TB yearly workload rating supports 24×7 operation
  • 2 million hour MTBF provides proven enterprise reliability

Enterprise bulk data drive

The Seagate Exos 7E8 ST3000NM000A is a 3TB internal hard drive built for 24×7 enterprise workloads. It uses conventional magnetic recording technology to deliver reliable capacity for data centre bulk storage. The 7200 RPM spindle and 256MB cache support consistent throughput in replicated or RAID arrays. It is designed for IT professionals who need dependable high-capacity storage.

SATA 6.0Gb/s interface and 512n format

The drive connects through a standard SATA 6.0Gb/s interface and uses the 512n sector format for broad compatibility with existing controllers and backplanes. This connector choice means it fits directly into typical server drive bays and RAID enclosures without adapters. The 512n format simplifies deployment in legacy and current operating systems alike. No special mounting hardware or protocol translation is required.

550 TB per year workload rating

The Exos 7E8 is rated for 550 TB of data transferred per year, a figure ten times higher than typical desktop drives. This workload rating is the single specification that determines whether the drive matches a 24×7 bulk data environment. Buyers who need sustained write performance beyond this annualised limit should consider a different drive class. The 2 million hour MTBF rating further qualifies it for continuous operation.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $148.99
Pricier than about 60% of the 4,938 comparable items (median $107.99).
Total capacity 3 TB
Higher than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $49.66 per TB
Cheaper than about 61% of the 2,365 comparable items (median $62.21 per TB).

New to this? Paying with USDT: TRC-20 or ERC-20 — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSeagate
Product lineExos 7E8
Model nameST3000NM000A
Total capacity3 TB
Performance
Rotational speed7,200 RPM
Storage
Cache memory256 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Shipping weight0.91 kg
Package size178 × 102 × 51 mm

Other versions of this model

2 more in the same range

Questions about this item

What throughput does the SATA 6.0Gb/s interface actually cap at?

The SATA 6.0Gb/s interface caps real-world throughput at roughly 600 MB/s, so sustained reads and writes from the 7200 RPM platters will not exceed that ceiling.

What physical space and mounting does this 3 TB drive require?

It fits a standard 3.5-inch drive bay with SATA data and power connectors, using the typical four side or bottom screw holes for secure mounting.

How is the drive installed, and which step is often missed?

Connect both the SATA data cable to the motherboard and the SATA power cable from the PSU, then initialise and format the 512n volume in the OS — skipping the format leaves the drive invisible.

More in 3.5-Inch Internal Desktop HDDs

Similar items