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Silver rectangular 2.5 inch SATA SSD with label showing RS-256 256GB

Rahonix

Rahonix RS-256 256GB 2.5" SATA internal SSD

SKU CH-A9FC-XKNCZ

2.5-inch SATA internal SSD with 256 GB capacity, up to 550 MB/s read and 520 MB/s write speeds, 120 TBW endurance and 1,000,000-hour MTBF

  • Total capacity256 GB
  • Sequential read speedUp to 550 MB/s
  • Sequential write speedUp to 520 MB/s
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal / External Solid State Drive (SSD)

Capacity 256GB

  • Sequential reads reach 550 MBps for snappy OS boots
  • Writes sustain 520 MBps so large files land quickly
  • 5 inch SATA III fits most laptops and desktops
  • 120 TBW and 1,000,000 hour MTBF signal long service life
  • 3D NAND and low 1.87 W active draw keep runs cool

Rahonix RS-256 256GB SATA SSD

The Rahonix RS-256 is a 256GB 2.5-inch internal solid-state drive that uses a SATA III interface and 3D NAND flash. It is designed for consumers who want to replace a mechanical hard drive in a desktop or notebook and gain faster boot times and application loading without changing the host system.

Thermals, noise and power

With no moving parts the drive runs silently and produces minimal heat during normal workloads. Idle power draw is 0.4W and active consumption reaches 1.87W, keeping energy use low. The operating temperature range of 0°C to 70°C allows reliable operation inside typical laptop or desktop chassis without additional cooling.

Build quality and daily use

The 7.0 mm metal casing fits standard 2.5-inch drive bays and uses the common 22-pin SATA data and power connector for straightforward installation. A mean time between failures rating of 1,000,000 hours and a 120TB written endurance figure indicate durability for everyday computing tasks.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $75.99
Cheaper than about 80% of the 1,994 comparable items (median $180.49).
Total capacity 256 GB
Lower than about 80% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 550 MB/s
Lower than about 70% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $296.84 per TB
Pricier than about 75% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameRahonix
Product lineRS
Model nameRS-256
Total capacity256 GB
Product typeInternal / External Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 550 MB/s
Sequential write speedUp to 520 MB/s
Storage
NAND flash type3D NAND
Write endurance120 TB
Connectivity
Connection protocolSATA
Ports & slots
Interface typeSATA III
Power
Idle power draw0.4 W
Active power draw1.87 W
Size & build
Form factor2.5 in (6.35 cm)
Heat sinkWithout HeatSink
Overall height7 mm
Overall width70 mm
Product depth100 mm
Product weight40g
In the box
Included items1*SSD, 1*Box package
Environment & compliance
Operating temperature range0 °C to 70 °C
Storage temperature range-20 °C to 70 °C
Operating humidity range5-95%
More details
Mean time between failures1,000,000 h

Other versions of this model

1 more in the same range

Questions about this item

How do I install the 2.5" SATA SSD in my laptop and which step is often missed?

Power off the laptop, remove the battery if accessible, connect the 22-pin SATA data and power cables, then initialise and format the 256GB drive in the operating system before use.

What maintenance or replacement will the RS-256 need based on its 120TB TBW rating?

The 3D NAND drive is rated for 120 terabytes written; once that limit is reached the flash cells may no longer retain data reliably, so plan to replace the SSD.

At what temperature does the drive hit its operating limit first during sustained workloads?

The operating range tops out at 70°C; prolonged heavy writes can push the controller to that threshold, triggering thermal throttling to protect the NAND.

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