HGST
HGST HUS724040ALS640Product Ultrastar 7K4000 4TB 7200 RPM SAS 6Gb/s 3.5" internal hard drive
A 4 TB internal hard drive spinning at 7200 RPM with a 64 MB buffer and SAS 6Gb/s interface
- InterfaceSAS 6Gb/s
- Capacity4TB
- RPM7200 RPM
- Form Factor3.5"
- 4 TB capacity stores large datasets
- 7200 RPM spindle speed enables fast data access
- SAS 6Gb/s interface provides reliable enterprise connectivity
- 64 MB buffer improves sustained transfer performance
- 5 inch form factor fits standard drive bays
Enterprise 4TB SAS Hard Drive
The HGST Ultrastar 7K4000 is a new 3.5-inch internal hard drive with a 4TB capacity and a 7200 RPM spindle speed. It connects via a SAS 6Gb/s interface and includes a 64 MB buffer. The drive weighs approximately 1.52 lb and measures 5.8 inches in depth.
Suited for 7200 RPM SAS Environments Not
This drive suits administrators expanding SAS-based RAID or JBOD arrays who need 4TB of 7200 RPM capacity. It is not for builders whose host bus adapters or backplanes lack SAS connectivity. The 30-day manufacturer highlight indicates a limited evaluation window.
Deciding Specification SAS 6Gb/s Interface
The single specification that decides fitment is the SAS 6Gb/s interface. Your controller or backplane must support this exact standard for the drive to function. Without a compatible SAS host connection, the 4TB capacity and 7200 RPM speed cannot be utilised.
Highlights
- 4 TB capacity stores large datasets
- 7200 RPM spindle speed enables fast data access
- SAS 6Gb/s interface provides reliable enterprise connectivity
- 64 MB buffer improves sustained transfer performance
- 5 inch form factor fits standard drive bays
Specifications
| Brand | HGST |
|---|---|
| Part Number | HUS724040ALS640 |
| Interface | SAS 6Gb/s |
| Capacity | 4TB |
| RPM | 7200 RPM |
| Form Factor | 3.5" |
Questions about this item
Should I choose the 4TB Ultrastar 7K4000 or a different capacity?
This model provides 4TB of storage. Other capacities exist in the 7K4000 series but are separate part numbers; select the 4TB version when you need that exact amount of space.
What does the 7200 RPM spindle speed deliver in a real system?
The 7200 RPM rotation gives faster random access and higher sustained throughput than slower drives, benefiting workloads such as databases or multi-user file servers.
How does the SAS 6Gb/s interface limit performance in practice?
The drive uses a SAS 6Gb/s connection, which is the standard interface for this Ultrastar 7K4000 model and determines the maximum host transfer rate.
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