HP

HP 745688-001 256GB MLC SATA III 2.5in SSD

Name: HP 745688-001 256GB MLC SATA III 2.5in SSD
Brand: HP
SKU: 745688-001

MPN: 745688-001·By: HP

Part #:745688-001NewIn stock

Ships worldwide from the US.

Product overview

The HP 745688-001 is a 256GB Multi-Level Cell (MLC) SATA III 2.5-inch Small Form Factor (SFF) M550 solid state drive. It utilizes 20nm NAND flash technology and supports a SATA 6Gb/s interface. Sequential read performance reaches up to 550MB/s, while sequential write performance achieves up to 500MB/s. Designed without a hard drive tray or caddy, this SSD is built for compatibility in standard 2.5-inch drive bays. The M550 series incorporates features from Micron's NAND technology, including support for device sleep with power consumption under 3mW in DEVSLP mode. Operating temperature range is commercial, from 0°C to 70°C. Dimensions conform to 100.45 x 69.85 x 7mm, with a maximum weight of 70g. This drive serves personal computing and small form factor applications requiring SATA III performance in a compact footprint.

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We'll confirm availability and pricing for 745688-001, usually within one business day.

Featuring

Manufacturer part #	745688-001
Brand	HP
Condition	New
Model	M550
Series	M550
Capacity	256 GB
Die Count	32
Controller	Marvell 88SS9189
DRAM Cache	512 MB
Technology	SSD
Form Factor	2.5-inch
Product Line	M550
Product Type	SSD
Random Read 4K	90000 IOPS
Random Write 4K	80000 IOPS
Sequential Read	550 MB/s
Sequential Write	500 MB/s

Performance

NAND Type	MLC
NAND Density	128 Gb density, Micron 20 nm L85 ONFi
Transfer Rate	6 Gb/s
Maximum External Data Transfer Rate	6144 MB/s (48 Gbit/s)

Power Consumption

Idle Average Power Consumption	<100mW
Active Average Power Consumption	150mW (TYP)

Networking Ports & Interfaces

Interface	SATA 3
Drive Interface Standard	SATA/600

Best for

Enterprise Servers
Suitable for server environments needing 256GB SATA III SSDs with 550MB/s sequential reads and 500MB/s writes in 2.5-inch form factor.
Personal Computing
Provides fast boot times with up to 550MB/s reads and low power consumption under 3mW in device sleep for desktop and laptop systems.
Small Form Factor Systems
Fits 2.5-inch bays with dimensions 100.45 x 69.85 x 7mm and 20nm MLC NAND for compact storage solutions.
Data Center Workloads
Supports commercial operating temperatures 0°C to 70°C and SATA 6Gb/s interface for reliable performance in varied environments.

Frequently asked questions

What is the storage capacity and form factor of HP 745688-001?

The HP 745688-001 provides 256GB capacity in a 2.5-inch Small Form Factor (SFF) with dimensions 100.45 x 69.85 x 7mm and maximum weight of 70g. It uses 20nm MLC NAND flash and does not include a tray or caddy.

What are the sequential performance specifications?

Sequential read performance reaches up to 550MB/s and sequential write up to 500MB/s over the SATA 6Gb/s interface. These specs apply to the 256GB M550 model built with 20nm NAND.

What interface does this SSD use?

It features a SATA III 6Gb/s interface, compatible with SATA 3Gb/s systems. This enables maximum data transfer rates for the 550MB/s reads and 500MB/s writes in the 2.5-inch form factor.

What is the power consumption in sleep mode?

Device sleep (DEVSLP) power consumption is under 3mW, measured at 25°C with DIPM enabled on SATA 6Gb/s. This supports low-power operation in the M550 series.

What is the operating temperature range?

The commercial operating temperature range is 0°C to 70°C. This applies to the 2.5-inch M550 SSD with 20nm NAND and SATA 6Gb/s interface.

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Price on requestRequest a Quote

We'll confirm availability and pricing for 745688-001, usually within one business day.