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Silver 3.5 inch bare hard drive with green circuit board and model label

Seagate

Seagate BarraCuda 7200.11 ST31000340AS 1TB 7200 RPM 32MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-HA34-NV67D MPN ST31000340AS

1 TB desktop drive with 7200 RPM, 32 MB cache, SATA 3.0 Gb/s interface and 4.16 ms average latency

  • Total capacity1 TB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory32 MB
  • 1 TB capacity stores large media libraries
  • 7200 RPM and 32 MB cache speed up file access
  • SATA 3.0 Gb/s interface connects to standard desktop motherboards
  • Second-generation perpendicular recording increases data density and reliability
  • Average latency of 4.16 ms reduces wait times

1TB SATA 3.0Gb/s Desktop Drive

The Seagate BarraCuda 7200.11 ST31000340AS is a 1TB 3.5-inch internal hard drive for desktop computers. It spins at 7200 RPM with a 32MB cache and connects through a SATA 3.0Gb/s interface. The drive uses second-generation perpendicular recording technology and supports Native Command Queuing.

Suits Capacity-Focused Desktop Builds

This drive suits users adding bulk storage to a desktop that accepts a 3.5-inch SATA drive. It is not for systems limited to 2.5-inch bays or laptops. Buyers needing an out-of-the-box formatted volume should look elsewhere, as the drive ships unformatted and unpartitioned. It also does not suit anyone requiring a pristine cosmetic appearance, since labels may show markings or colour variation.

25-Bad-Sector Allowance Is The Deciding Factor

The supplier notes that units may contain up to 25 bad sectors and are sold as tested working used drives despite the new condition flag. This tolerance is the single specification that determines whether the drive matches your reliability requirements. If your workload cannot accept any defective sectors, choose a different drive.

How it compares

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

Price $89.99
Cheaper than about 56% of the 4,938 comparable items (median $107.99).
Total capacity 1 TB
Lower than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $89.99 per TB
Pricier than about 61% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineBarraCuda 7200.11
Model nameST31000340AS
Total capacity1 TB
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Cache memory32 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.68 kg
Package size147 × 102 × 30 mm

Questions about this item

What size drive bay and interface does the 3.5" ST31000340AS need to mount and connect?

The drive fits a standard 3.5" bay and connects via a SATA 3.0Gb/s data cable plus a SATA power connector from the PSU.

How is the BarraCuda 7200.11 installed, and what step is often missed?

Secure the drive with four 6-32 screws, attach both SATA data and power cables, then initialise and format the 1TB volume in Disk Management before use.

When will the ST31000340AS need maintenance or replacement?

Replace the drive if SMART reallocated sectors approach the 25-sector threshold or if seek errors appear, as the 7200 RPM mechanism ages.

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