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Silver rectangular 2.5 inch SATA laptop hard drive

Toshiba

Toshiba MHZ2120BH 120GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" laptop hard drive

SKU CH-N64X-Z0C9R MPN MHZ2120BH

120 GB 2.5" SATA laptop drive spins at 5400 RPM with 8 MB cache for reliable storage

  • Total capacity120 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeRetail
  • Cache memory8 MB
  • Average seek time12 ms
  • 120 GB capacity stores more files
  • 5400 RPM spindle delivers steady throughput
  • 8 MB cache smooths read bursts
  • SATA 3.0 Gb/s interface fits standard notebook bays
  • 5 inch form factor matches laptop drive cages

120 GB SATA laptop drive

The Toshiba MHZ2120BH is a 2.5 inch internal hard drive with 120 GB capacity and a SATA 3.0Gb/s interface. It suits owners of older notebooks or consumer-electronics devices that still accept a mechanical 5400 RPM drive with 8 MB cache. Buyers who need a solid-state replacement or a larger mechanical drive will not be served by this model.

Sustained workload behaviour

At 5400 RPM the drive delivers average seek time of 12 ms, average write time of 14 ms and average latency of 5.56 ms. Perpendicular magnetic recording helps maintain consistent throughput during long file copies or backups, while industry-leading idle and standby power draw keeps heat and acoustics low. The 8 MB buffer smooths burst traffic but cannot mask the rotational latency of a mechanical spindle.

Pre-installation checks

Verify that your laptop or device has a free 2.5 inch SATA bay and a SATA 3.0Gb/s or compatible controller. Confirm the operating system can recognise a 120 GB volume without additional drivers. Ensure the physical mounting holes and connector orientation match the chassis, as retail or OEM packing may vary.

How it compares

Measured against everything we stock in 2.5-Inch Internal Laptop HDDs, at today’s prices. Recalculated every night.

Price $49.99
Cheaper than about 68% of the 645 comparable items (median $66.99).
Total capacity 120 GB
Lower than about 84% of the 419 comparable items (median 320 GB).
Price per TB $416.58 per TB
Pricier than about 72% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameTOSHIBA
Model nameMHZ2120BH
Total capacity120 GB
Performance
Average seek time12 ms
Mean write time14 ms
Mean latency5.56 ms
Rotational speed5,400 RPM
Storage
Cache memory8 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Shipping weight0.91 kg
Package size210 × 182 × 67 mm

Questions about this item

How much heat and noise does the 5400 RPM MHZ2120BH produce during continuous operation?

The drive is designed for minimal heat and acoustics with industry-leading idle and standby power consumption.

Does my laptop need a 2.5 inch SATA 3.0Gb/s bay to install this MHZ2120BH?

Yes, it requires a standard 2.5 inch drive bay with a SATA 3.0Gb/s interface connection.

Will the SATA 3.0Gb/s interface on this MHZ2120BH work with an older laptop that only supports SATA 1.5Gb/s?

The SATA 3.0Gb/s interface is backward compatible with earlier SATA revisions.

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