Visit our Business Solutions website >>

Crucial RealSSD C300

Crucial RealSSD C300
alaScore 91

931 reviews

Jul, 2018

alaTest has collected and analyzed 931 reviews of Crucial RealSSD C300. The average rating for this product is 4.4/5, compared to an average rating of 4.5/5 for other Solid-state drive for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other Solid-state drive the Crucial RealSSD C300 is awarded an overall alaScore™ of 91/100 = Excellent quality.

Review analysis

(Based on 931 reviews)

Expert Reviews  

User Reviews  


Below is a list of reviews for this or similar products. If you think this grouping is wrong please click here to flag.
Read more on our FAQ’s page.
Showing 1 - 166 of 879 Show Reviews: in English | in other languages (52)

Consumer review ( review summary for Crucial RealSSD C300


alaTest has collected and analyzed 156 user reviews of Crucial RealSSD C300 from The average user rating for this product is 4.2/5, compared to an average user rating of 4.5/5 for other Solid-state drive on

84% of the reviews on give this product a positive rating.

This summary is based on the products: Crucial Technology 128 GB Crucial RealSSD C300 Series Solid State Drive CTFDDAC128MAG-1G1Crucial Technology 128 GB Crucial RealSSD C300 Series Solid State Drive CTFDDAC128MAG-1G1

Jul, 2018

Expert review by (

Firmware corruption probe implicates at least one RealSSD C300


We don't know too many folks who shelled out the dosh for Crucial's RealSSD C300, so perhaps it's no surprise that we haven't heard too many complaints about t...

Mar, 2010

Expert review by : PCMag Staff (

Crucial Real SSD C300


Preview of the Crucial Real SSD C300.

Mar, 2010

Expert review by (

Crucial RealSSD C300 256GB Product Information - PCWorld


Includes EZ Gig II cloning software


Drive offers top-flight overall performance, and the best write performance we've seen.

Expert review by : Nathan Edwards (

Crucial C300 256GB SSD Review


It's about damn time. 6Gb/s SATA is old news now. It's been half a year since we saw the first 6Gb/s SATA–enabled hard drive, and it was a frickin' mechanical drive. Talk about unnecessary. Solid state drives, on the other hand, have been bumping at...

Fastest read speeds ever; decent write speeds

Random writes can't touch SandForce drives; write-speed slowdowns after use

There’s no question that on a 6Gb/s SATA port, the Crucial C300 has by far the fastest read speeds we’ve ever seen. And on a 3Gb/s port, it’s nothing to sneeze at. But for sequential and random write speeds, it can’t touch SandForce drives. And its...

Jul, 2010


Expert review by : Aleksey Meyev (

Solid State Drives Roundup: OCZ RevoDrive, Crucial RealSSD C300, and Others


Our today's roundup will talk about all sorts of drives: individual drives, RAID 0 arrays of drives, drives supporting SATA300, SATA600 and PCI Express interface… They all have one thing in common – they are SSDs.

It's time for us to sum up this test session.

Jan, 2011

Expert review by : techPowerUp! (

Crucial RealSSD C300 128 GB SATA 6 Gb/s


Crucial's RealSSD C300 shows impressive real-life performance in both SATA-II and SATA 6 Gb/s mode. When running on a SATA-II controller it is able to surpass most of the Sandforce based drives, in 6 Gb/s mode it even manages to be the fastest SSD we...

Great price/performance ratio, SATA 6 Gb/s support, Excellent real-life performance, Supports TRIM, Rugged metal case

Can not max out SATA 6 Gb/s interface, Relatively low [synthetic] write speeds

Oct, 2010


Expert review by : Jake Mete (pureoverclock)

Crucial C300 256GB SSD


Fastest drive on the market with SATA 6G connectivity.

The single biggest bottleneck in modern systems is indeed the traditional plattered hard drive, and using an SSD in your system will make such a difference that you'll want to cry if faced with having to use an HDD afterwards. No exaggeration, the...

Aug, 2010

Expert review by : Ian Jackson (

Crucial RealSSD C300 64GB Review


The RealSSD C300 is Crucial's current flagship SSD and comes in 256GB, 128GB and 64GB flavours, the latter of which we are reviewing today. The unique selling point of the C300 is its Marvell controller which is the first to offer a native 6Gb/s......

Superlative read speed ; Native 6Gb/s interface ; Well-optimised TRIM ; Extremely good value

Write speeds are mediocre

The 256GB Crucial RealSSD is one of the quickest drives on the market, and most of what makes it great is also included in this low cost variant. For the vast majority of home users this is the affordable SSD to buy.

Aug, 2010

Expert review by : Aron Schatz (

Crucial RealSSD C300 256GB CTFDDAC256MAG-1G1


The Crucial RealSSD C300 256GB drive is the fastest drive to cross our test bench, so far. What more do you need to know?

Wow. Maxing out a Gen2 Serial ATA controller? Granted, the drive is very expensive (retail is hitting $600-700, Newegg Link, Amazon Link). If money is no option and speed is everything, this is the drive for you. Crucial has done something very unique....

Jul, 2010

Expert review by : Techware Labs (

Expert Review


The occasionally lackluster write performance numbers might lead you to believe that this drive is underperforming, and in the strictest sense, that is true. In practice, however, a SSD used as a boot drive is being read from far more often than it's...

Jul, 2010

Product Specifications


Certification:FCC, CE, RoHS, UL
Color of product:Black / Grey
SSD form factor:2.5"

Energy Management

Operating voltage:5
Power consumption (read):1.7
Power consumption (standby):0.092
Power consumption (write):3.1

Operational Conditions

Operating shock:1500
Operating temperature range (T-T):0 - 70
Storage temperature range (T-T):-55 - 95


Access Time:0.1
Data Transfer Rate:6
ECC: Yes
Mean time between failures (MTBF):1200000
Memory Type:MLC
Read Speed:355
Seek time:1
Solid-state drive capacity:128 / 64
Solid-state drive interface:Serial ATA / Serial ATA III
Solid-state drive interfaces:SATA / Serial ATA III
Write Speed:140 / 70


Operating voltage:5
Power consumption (read):1.7
Power consumption (standby):0.092
Power consumption (write):3.1

Technical Details

Operating shock:1500
Operating temperature (T-T):0 - 70
Operating temperature range (T-T):0 - 70
Storage temperature (T-T):-55 - 95
Storage temperature range (T-T):-55 - 95

Weight & Dimensions

Depth:2.75 / 3.94
Width:2.75 / 3.94