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A black rectangular 2.5-inch SATA SSD with gold connectors visible

ADATA

ADATA Ultimate SU650 256GB 2.5-inch SATA internal SSD

SKU CH-88PH-FP6D5

2.5-inch SATA internal SSD with 256 GB capacity, 520 MB/s read and 450 MB/s write speeds, 20,000 random read and 75,000 random write IOPS, 1500 G shock resistance and 2,000,000 hour MTBF

  • Sequential write speed225 MB/s
  • Interface typeSATA 6 Gbit/s
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)
  • Intended useStorage
  • Connection protocolSATA
  • Faster boot and app loading with 520 MB/s sequential read speed
  • Smoother multitasking thanks to 450 MB/s sequential write speed
  • Responsive everyday performance from 20000 random read IOPS
  • Quick file saves supported by 75000 random write IOPS
  • Reliable long-term storage backed by 2000000 hour MTBF

What this drive is

The ADATA Ultimate SU650 is a 256GB 2.5-inch internal solid-state drive that connects through a SATA 6Gb/s interface. It uses 3D NAND flash and delivers sequential read speeds up to 520 MB/s and write speeds up to 450 MB/s. The drive weighs 27 grams and fits standard 2.5-inch drive bays.

Who this suits

This SSD suits desktop or laptop owners who want to replace a mechanical hard drive with faster, silent storage for operating systems, applications and everyday files. Random read performance of 20,000 IOPS and random write of 75,000 IOPS improve responsiveness in typical workloads. Systems limited to PCIe or M.2-only slots cannot use this drive.

Deciding specification

The SATA 6Gb/s interface and 2.5-inch form factor are the single details that determine compatibility; the drive must connect to a standard SATA data and power cable inside a 2.5-inch bay or caddy. Operating temperature range is 0 to 70 °C and shock resistance is rated at 1500G.

How it compares

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

Price $54.99
Cheaper than about 89% of the 1,994 comparable items (median $180.49).
Sequential write speed 225 MB/s
Lower than about 95% of the 1,173 comparable items (median 1,700 MB/s).

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Specifications

Product
Brand nameADATA
Model nameUltimate SU650
Part numberASU650SS-256GT-R
Product typeInternal Solid State Drive (SSD)
Intended useStorage
Performance
Sequential write speed225 MB/s
Storage
Cache memory256 unknown modifier
Connectivity
Connection protocolSATA
Ports & slots
Interface typeSATA 6 Gbit/s
ConnectionSATA
Size & build
Form factor2.5 in (6.35 cm)
Overall height1.1 in x 9.7 in x 6.5 in
Overall width1.1 in x 9.7 in x 6.5 in
Product depth1.1 in x 9.7 in x 6.5 in
Product weight27 g

Questions about this item

What do the 520 MB/s read and 450 MB/s write speeds mean once the drive is installed?

Those are the maximum sequential transfer rates the SU650 can sustain over SATA III, so large file copies and boot sequences will run at up to those speeds.

What does the SATA III 6Gb/s interface limit in practice?

The SATA III link tops out at 6Gb/s, so the drive’s 520 MB/s read and 450 MB/s write ratings operate within that bus bandwidth.

What physical space and mounting does the 2.5-inch SU650 need?

It fits a standard 2.5-inch bay at 7 mm height (1.1 in thick) and weighs 27 grams, using the regular SATA data and power connectors.

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