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Silver rectangular 2.5 inch SSD with label showing model and capacity

Crucial

Crucial M4 CT256M4SSD1 256GB 2.5" SATA III internal SSD

SKU CH-TRCK-B70DY MPN CT256M4SSD1

A 2.5-inch 256GB SATA internal SSD with up to 500MBps sequential read, 260MBps write, 45,000 random read IOPS and 50,000 random write IOPS

  • Device Type7mm Internal Solid State Drive (SSD)
  • Used ForConsumer
  • Form Factor2.5"
  • Capacity256GB
  • Memory ComponentsMLC
  • InterfaceSATA III
  • Fast boot and load times with up to 500MBps sequential read
  • Snappy multitasking from up to 50,000 IOPS random write
  • Cool, quiet operation at just 0.16W active power
  • Fits thin laptops and standard bays with 7mm 2.5" design
  • Long-term reliability backed by 1,200,000 hours MTBF

256 GB MLC SATA III SSD

The Crucial M4 CT256M4SSD1 is a 2.5 inch internal solid-state drive with 256 GB capacity and a 7 mm height. It uses MLC NAND and a Marvell controller on a SATA III interface. The drive targets consumer notebooks and desktops needing a slim profile without sacrificing storage space.

Sustained sequential performance

On a SATA 6 Gbps link the drive delivers up to 500 MBps sustained sequential read and up to 260 MBps sustained sequential write. On a SATA 3 Gbps link sustained sequential read reaches 265 MBps. Random performance reaches up to 45000 IOPS read and 50000 IOPS write at 4 KB.

SATA III interface limits

The SATA III interface caps theoretical throughput at 6 Gbps, so real-world sustained speeds cannot exceed the bus limit. The drive operates from 0 °C to 70 °C and draws less than 85 mW idle and 0.16 W active. MTBF is rated at 1200000 hours with built-in EDC and ECC for data reliability.

Points forts

  • Fast boot and load times with up to 500MBps sequential read
  • Snappy multitasking from up to 50,000 IOPS random write
  • Cool, quiet operation at just 0.16W active power
  • Fits thin laptops and standard bays with 7mm 2.5" design
  • Long-term reliability backed by 1,200,000 hours MTBF

Caractéristiques

BrandCrucial
SeriesM4
ModelCT256M4SSD1
Device Type7mm Internal Solid State Drive (SSD)
Used ForConsumer
Form Factor2.5"
Capacity256GB
Memory ComponentsMLC
InterfaceSATA III
ControllerMarvell
Sustained Sequential ReadUp to 500MBps (SATA 6Gbs); 265MBps (SATA 3Gbs)
Sustained Sequential WriteUp to 260MBps (SATA 6Gbps)
4KB Random ReadUp to 45,000 IOPS
4KB Random WriteUp to 50,000 IOPS
MTBF1,200,000 hours
FeaturesIntegrated 8-channel single chip Controller
Self-monitoring, analysis, and reporting technology (SMART) command set
RAID Support
Average Access Time < 0.1 ms
Data Reliability: Built-in EDC/ECC
Power Consumption (Idle)< 85 mW
Power Consumption (Active)0.16W
Operating Temperature0°C ~ +70°C
Storage Temperature-40°C ~ +85°C
Max Shock Resistance1500G
Height7mm
Width69.85mm
Depth100.5mm
Weight73g
Poids d’expédition0.14 kg
Dimensions du colis130 × 130 × 18 mm

Questions sur cet article

How much power does the 256GB M4 draw when active all day?

Active power is 0.16W; idle power is below 85 mW, so heat and noise stay minimal during continuous use.

What must my laptop or desktop already have to install this 2.5 inch SATA III drive?

A free 2.5 inch drive bay or caddy and a SATA data plus power connector; the drive is 7mm high and fits standard SATA III ports.

Will the M4 work reliably with an older SATA 3Gbps motherboard?

Yes — it runs at SATA 3Gbps with sequential reads up to 265MBps and writes up to 260MBps, and supports the SMART command set for monitoring.

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