Crucial V4 256GB SATA II SSD Review

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For Those Still Running SATA II Boards

It’s been awhile since we’ve had a SATA II (3Gbps) interfaced drive come across our desk as the SATA III (6Gbps) drives have been coming out fast and furious and there aren’t as many of the SATA II drives being made. However, there are still a heck of a lot of systems out there which are not SATA 6Gbps capable so it makes sense for there to be a fair amount of demand for the 3Gbps drives. So, it wasn’t all that surprising when the Crucial V4 256GB SATA II drive showed up on our doorstep looking for some love. We’re all too happy to oblige.

Crucial V4 256GB

Of course, having a SATA II interface the performance numbers aren’t going to be hitting some of the highs we’ve seen on the newest drives but those with SATA II motherboards won’t be shorting themselves. If you are running a little older hardware and looking for a value priced SSD, pay attention. Crucial lists the 256GB version of the V4 drive as hitting reads as fast as 230MB/s and writes up to 190MB/s. The smaller capacity drives, 32GB, 64GB, and 128GB, offer a little less in overall performance, decreasing as capacity does since lesser dense NAND is a bit slower. The 256GB V4 can be found for about $180 online as this is written and comes with a three year warranty covering manufacturing defects.

Crucial V4 256GB Box Front

Across all of the capacities in the V4 line, each feature a 2.5″ interface, 25nm MLC NAND, and a life expectancy of 1 million hours MTBF.

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Capacity: 32GB 64GB 128GB 256GB
Interface: SATA 3.0 GB/s SATA 3.0 GB/s SATA 3.0 GB/s SATA 3.0 GB/s
Sustained Sequential Read * up to (128k transfer): 200 MB/s 230 MB/s 230 MB/s 230 MB/s
Sustained Sequential Write * up to (128k transfer): 60 MB/s 100 MB/s 175 MB/s 190 MB/s
Random Read up to ** (4k transfer): 10,000 IOPS 10,000 IOPS 10,000 IOPS 10,000 IOPS
Random Write up to ** (4k transfer): 1,200 IOPS 2,400 IOPS 4,000 IOPS 4,000 IOPS
Form Factor: 2.5 inch 9.5mm 2.5 inch 9.5mm 2.5 inch 9.5mm 2.5 inch 9.5mm
NAND Flash Memory: 25nm Micron NAND Flash Memory Multi-Level Cell (MLC) SSD-Quality Components
Life Expectancy: 1.0 million hours Mean Time Between Failures (MTBF)
Operating Temperature: 0°C to 70°C
Compliance: RoHS “green”, CE, FCC, BSMI, C-Tick, KCC RRL, W.E.E.E., IC

Crucial V4 256GB Box Rear

As noted on the box, this is a no frills package with no extras being bundled with the drive such as a 2.5″ to 3.5″ adapter plate or accompanying software. For warranty and installation information, the user is directed to Crucial’s website.

Crucial V4 256GB Rear

The drive itself is comprised of a black aluminum shell with Crucial branding on the front and rear with blue, white, and grey being the predominant colors – typical of Crucial products. Let’s crack this baby open and see what makes it tick.

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