
HGST HUS724040ALS640/H7240AS60SUN4.0T 4TB SAS 6Gb/s 3.5in HDD Tested
HGST
Same-day dispatch on orders before 3PM Mountain
2 in stock from $47.46 · 2 units tested in-house
This page covers the HGST Ultrastar 7K4000, part number H7240AS60SUN4.0T, a 4TB SAS hard drive in a 3.5 inch form factor that was originally sold as a Sun/Oracle OEM part. It uses a 6Gb/s SAS interface, making it suitable for servers and storage arrays that accept standard enterprise SAS drives of this generation.
The store has tested 2 units of this part number, and both passed. Recorded power-on hours range from 17,799 to 20,397, with a median of 19,098, placing one unit in the light use tier and one in the standard use tier. Sequential benchmark results across the tested units show a median read speed of 182 MBps and a median write speed of 175 MBps.
Each unit was sanitized using the SCSI Format Unit method, aligned with NIST 800-88 guidance, with read-back verification performed before resale. Both units currently tested are in stock.
| Brand | HGST |
|---|---|
| Part number | H7240AS60SUN4.0T |
| Type | Hard drive |
| Capacity | 4TB |
| Interface | SAS 6Gb/s |
| Form factor | 3.5 in |
Every unit of this model we have handled, from our test database. What we test
Units by usage tier, from their SMART power-on hours. How tiers work
Every unit we sell gets a permanent public report. Serial and seal numbers stay on the certificate in the box.
| Unit | Tier | Power-on hours | Tested | Result | Report |
|---|---|---|---|---|---|
| U-202 | Light Use | 17,799 | Sep 24, 2026 | Pass | View report for unit U-202 |
| U-201 | Standard Use | 20,397 | Sep 24, 2026 | Pass | View report for unit U-201 |
As a 4TB enterprise SAS hard drive, it fits general server storage roles such as file storage, backup targets, or bulk data volumes in servers and storage arrays that use SAS drives.
It uses a SAS 6Gb/s interface and a 3.5 inch form factor, so it will work in systems and enclosures built for standard SAS hard drives of this size. It was originally an OEM part for Sun/Oracle systems, but the SAS interface is not vendor locked.
Every unit goes through a sequential and random read/write benchmark, a full extended self-test across the entire surface, a power-on hours cross-check against an independent on-drive log, a NIST 800-88 sanitize with read-back verification, and a SMART health read covering reallocated, pending, and uncorrectable sectors.
The tiers group tested units by recorded power-on hours: Light Use covers 500 to 20,000 hours and Standard Use covers 20,000 to 40,000 hours. Of the two units tested for this part number, one falls in each tier.
Both tested units were sanitized using the SCSI Format Unit method, which follows NIST 800-88 guidance, and the sanitize process included read-back verification.