Seagate ST31000528AS 1TB SATA front view Seagate ST31000528AS 1TB SATA front view
Seagate ST31000528AS 1TB SATA front view Seagate ST31000528AS 1TB SATA front view
Seagate ST31000528AS top view Seagate ST31000528AS top view
Seagate ST31000528AS angled view Seagate ST31000528AS angled view
Seagate ST31000528AS 1TB SATA front view
Seagate ST31000528AS 1TB SATA front view
Seagate ST31000528AS top view
Seagate ST31000528AS angled view

Seagate

Seagate ST31000528AS – 1TB | SATA 3Gb/s | 7200RPM | 3.5" | Desktop HDD

$79.95

Brand New, Factory Sealed | In Stock | Bulk Orders Available

The ST31000528AS is a 1TB SATA 3Gb/s hard drive featuring 7200RPM, 32MB cache, and 8.5ms average seek time in a 3.5" form factor. Built for late-2000s desktop and workstation systems, it is ideal for mainstream computing, gaming PCs, and system builders seeking reliable storage. Compatible with SATA-enabled motherboards, desktop chassis with 3.5" drive bays, and systems supporting SATA 3Gb/s or backwards-compatible SATA 6Gb/s controllers. This Barracuda 7200.12 generation incorporates perpendicular magnetic recording technology and Native Command Queuing for enhanced performance during multi-tasking operations.

All products from Anand International ship brand new and factory sealed. Volume and B2B pricing available for qualified buyers.
Specifications
  • Manufacturer: Seagate
  • Model: ST31000528AS
  • Capacity: 1TB (1,000 GB)
  • Interface: SATA 3Gb/s
  • Spindle Speed: 7200 RPM
  • Cache: 32MB
  • Form Factor: 3.5"
  • Seek Time: 8.5ms average
  • Latency: 4.17ms
  • MTBF: 750,000 hours
  • Drive Type: Desktop Hard Drive
  • Warranty: 90 days
  • Shipping: Free domestic US shipping
  • Condition: Brand New, Factory Sealed
Product Features
  • 1TB storage capacity with 500GB platter technology for demanding storage workloads
  • SATA 3Gb/s interface with Native Command Queuing (NCQ)
  • 7200RPM spindle speed for fast data access
  • 32MB cache buffer for improved performance
  • Perpendicular magnetic recording for increased data density
  • S.M.A.R.T. drive monitoring and reporting
  • Hot-pluggable SATA connectivity
  • Low power consumption with power management modes
  • Direct replacement for legacy systems requiring SATA connectivity
  • 90-day Anand International warranty on all legacy stock
  • Free domestic US shipping included
  • Volume and B2B pricing available for qualified buyers
Compatibility

Compatible with desktop computers, workstations, and gaming PCs with SATA-enabled motherboards and 3.5" drive bays. Also works with SATA RAID controllers, external enclosures with SATA-to-USB/eSATA adapters, and newer SATA 6Gb/s systems (backwards compatible). Not compatible with legacy IDE/PATA systems, 2.5" laptop drive bays, or systems requiring SAS connectivity.
Shipping & Returns
  • Free Shipping: We currently offer free Economy Shipping within the continental U.S. with no minimum order required. Expedited shipping is available at standard carrier rates.
  • Same-Day Shipping: Order placed before 2PM PST will ship the same day. Orders received after this time will ship the following business day.
  • Hassle-Free Returns: If you're not completely satisfied with your purchase, simply return it within 10 days for a hassle-free refund or exchange.

1TB SATA 3Gb/s 7200RPM 32MB Cache Factory Sealed

Why the ST31000528AS is the right Desktop HDD

The Barracuda 7200.12 series represents Seagate's 12th generation desktop hard drive technology, launched in 2009. This 1TB model delivers reliable 7200RPM performance with SATA 3Gb/s connectivity and advanced features like NCQ. As part of the acclaimed 7200.12 generation, it offers improved reliability over earlier models with a low 0.32% annual failure rate. The drive uses efficient 500GB platter technology and perpendicular recording for optimal data density in mainstream desktop applications.

Proven 7200.12 Generation Reliability

Part of Seagate's most reliable desktop drive series with 0.32% AFR and 750,000-hour MTBF rating. Enhanced firmware and mechanical engineering deliver consistent performance for demanding applications.

Native Command Queuing Performance

SATA NCQ technology optimizes command ordering for faster multi-tasking performance. Reduces seek times and improves overall system responsiveness during concurrent read/write operations.

Efficient 500GB Platter Design

Uses two 500GB platters with perpendicular magnetic recording technology for maximum storage density. Delivers up to 160MB/s sustained data transfer rates with reduced power consumption.

Desktop-Optimized Engineering

Purpose-built for desktop and workstation environments with 8.5ms average seek time. Features power management modes and thermal monitoring for continuous operation in standard PC chassis.

New Old Stock with 90-Day Warranty

Available as brand new, factory sealed old stock units from Anand International with a 90-day warranty. Ideal for legacy system maintenance, vintage computing restoration, and hard-to-find replacement needs.

Frequently Asked Questions

Frequently asked questions for SATA, including information on usage, configuration, and compatibility.

1. What is a SATA hard drive used for?

A SATA (Serial ATA) hard drive is used in desktops, laptops, servers, and NAS systems for data storage. It’s the most common hard drive type, offering a balance of speed, affordability, and wide compatibility.
2. What’s the difference between SATA I, II, and III?

The difference is speed. SATA I supports up to 1.5 Gb/s (150 MB/s), SATA II up to 3 Gb/s (300 MB/s), and SATA III up to 6 Gb/s (600 MB/s). Most modern drives use SATA III but remain backward compatible with older versions.
3. Are SATA hard drives compatible with older systems?

Yes. SATA drives are backward compatible, meaning a SATA III drive can work on a SATA II or I port, though performance will be limited to the slower speed of the system.
4. What’s the maximum capacity of a SATA hard drive?

SATA hard drives come in a wide range of capacities, from 500GB to over 20TB. This makes them suitable for everything from basic desktop use to large-scale data storage and backup.
5. Can I use a SATA hard drive in RAID or NAS systems?

Yes. SATA drives support RAID configurations and can be used in NAS systems. For higher reliability, enterprise-grade SATA models such as NAS, surveillance, or data-center drives are recommended.
6. What is the difference between a 2.5" and a 3.5" SATA hard drive?

2.5" SATA drives are smaller and commonly used in laptops or compact systems, while 3.5" SATA drives are larger and primarily used in desktops, servers, and NAS devices.
7. How do SATA hard drives compare to SSDs?

Both use the SATA interface, but HDDs store data on spinning disks while SSDs use flash memory. SSDs are much faster, but SATA HDDs remain more affordable for high-capacity storage.