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Sandisk Z400s 64GB

Sandisk Z400s 64GB
alaScore 89

84 reviews

Sep, 2018

alaTest has collected and analyzed 84 reviews of Sandisk Z400s 64GB. The average rating for this product is 4.2/5, compared to an average rating of 4.5/5 for other products in the same category for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the Sandisk Z400s 64GB is awarded an overall alaScore™ of 89/100 = Very good quality.

Review analysis

(Based on 84 reviews)

1 expert reviews

User Reviews  


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Consumer review ( review summary for Sandisk Z400s 64GB


alaTest has collected and analyzed 1 user review of Sandisk Z400s 64GB from The average user rating for this product is 4.0/5, compared to an average user rating of 4.5/5 for other products in the same category on

100% of the reviews on give this product a positive rating.

This summary is based on the products: SanDisk Z400 2.5-Inch 128 GB SATA III Solid State DriveSanDisk Z400 2.5-Inch 128 GB SATA III Solid State Drive

Sep, 2018

Expert review by : Chris Ramseyer (

SanDisk Z400s SSD Review


SanDisk has the exclusive on Silicon Motion's SM2246XT controller. What's more, we got our 128GB Z400s for just $.25/GB. But is this a true low-cost contender, or just a cheap SSD?

At $44.99, the Z400s is a very low-cost SSD. It's at least five times faster than a hard drive with random data and has consistent sequential performance under light workloads

The Z400s is also much smaller than a hard drive. Performance isn't everything, unless it's either a lot of performance or a lot of capacity

I really liked the Z400s 128GB at 25 cents per gigabyte. I don't know what happened to that price, but it appears to be gone now. At $44.99, the price is still low compared to many of the other products on the market. However, there are some drives...

Dec, 2015

Consumer review (

Solid, inexpensive drive.


Comes with only the SSD, nothing else, so if you need a height adapter for installing into a device, such as some laptops and other applications, you will need to get that separately.

Low price. I only need this for a network gateway running pfSense, which uses FreeBSD and doesn't require much in the way of performance from a drive. This fits the bill. Has threaded metal fastener holes on sides and bottom.

None, really, other than for a drive at this price, expectations shouldn't be too high, although if purchasing as an upgrade from HDD, it should provide a noticeable improvement in performance, though another $10-15 might get yet a better drive.

May, 2016

Consumer review (

Terrible SSD


Newegg was kind enough to allow me to return it after the packing had been disposed of.

It is an affordable product.

I have purchased several of these SSD's for my company and for personal use. They all have issues with freezing or disk utilization in the sense that they constantly peg out on Read/Write speeds. This could be alright if SanDisk had decent support or...

May, 2016

Consumer review (

Nice Drive


I have used this SSD in 2 builds as requested by clients. This drive boots incredibly fast. No problems from this drive for almost a year now.

Very Fast

Looks Ugly Not the best price per GB

Apr, 2016

Consumer review (

Very bad customer service. Move on to another brand.


I have been building computers since 1992. I have never seen an aggravating RMA Process from a drive manufacturer like this before.

Nothing at all

I bought 6 of those drives from Newegg late 2015. One of the computer stopped booting. The drive would cause machines to bluescreen when connected as secondary drive. I cant get an RMA number because SanDisk want a screen capture for the boot error...

Mar, 2016

Consumer review (

Seemed ok at first


Perhaps I just got a bad part, but I had to load the OS three times (kept crashing) before the drive stopped and wouldn't work. It would not format even in DOS and I couldn't do anything with it in Disk Management.

Compact size More stable than standard drive

Had to reload OS three times before it quit. Bad sectors - can't format

Mar, 2016

Consumer review (



I like it as a media SSD not my main

Nothing wrong with it.

Mar, 2016

Consumer review (

worked great till it died


While not as fast as some enthusiast grade SSDs, this drive is way faster than any HDD I have ever owned. After a string of bad luck with HDDs I decided to go with something different. Installation was a breeze. Fastest windows install I've ever...

Fast, small, no moving parts

did not come with a SATA cable or mounting screws, died after 4 months.

Mar, 2016

Consumer review (

A great deal on a good drive.


If you're after a cheap SSD to give a little bit of a jolt to that old PC or laptop, you'd be hard pressed to do better. I currently use two of these as boot drives in my desktop PC, one for Windows 10 (NTFS, obviously) and the other for Debian 8 (ext4).

It's a reasonably fast SSD with a low cost per gigabyte. One of these drives injected new life into my old ThinkPad X200; once I decided to shelve that unit for good, it gave new life to my gaming PC with a SATA 3 controller card. The Z400s benchmarks...

It only benchmarks OK. CrystalDiskMark 5.0.2 (x64) reported sequential reads of 401.3 MB/s (far shy of the stated 546 MB/s maximum) and 184.2 MB/s on sequential writes (again, a far cry from the stated 342 MB/s maximum). I wonder if this isn't because...

Feb, 2016

Consumer review (

Great drive for bringing new life to older machines


Installed this drive in about 25 older machines so far. No issues at all to report. I'm planning on using this drive in about 300 more machines in our environment and redeploy them.

Several times faster than none solid state drives Getting a total performance boost of about 40% on machines over the older spindle drives they are replacing Lower power usage so less heat, also more battery life in older laptops

write speeds are a little slower than some drives about 20 dollars more, but at this price point; this is much more bang for the buck.

Feb, 2016

Product Specifications


Certification:FCC, UL, TUV, KC, BSMI, VCCI
Color of product:Black / Black, Green / Blue / Green
Internal: Yes
SSD form factor:2.5" / M.2

Energy Management

Power consumption (read):1.2 / 1.6
Power consumption (write):1.3 / 1.5 / 1.9 / 2.6

Operational Conditions

Non-operating shock:1500
Non-operating vibration:4.9
Operating shock:1500
Operating temperature range (T-T):0 - 70
Operating vibration:5
Storage temperature range (T-T):-55 - 85

Other Features

Internal:Y / Yes

Packaging Data

Manual: Yes
Quick start guide: Yes


Data Transfer Rate:6
Mean time between failures (MTBF):1750000
Random read (4KB):17300 / 32900 / 35500 / 36600
Random write (4KB):10600 / 21700 / 43300 / 69400
Read Speed:279 / 546
Solid-state drive capacity:128 / 256 / 32 / 64
Solid-state drive interface:mini-SATA / Serial ATA III
Solid-state drive interfaces:M.2 / mSATA / Serial ATA III
TBW rating:20 / 40 / 72
Write Speed:128 / 182 / 342 / 48 / 94


Power consumption (read):1.2 / 1.6
Power consumption (write):1.3 / 1.5 / 1.9 / 2.6

Technical Details

Form Factor:M.2 2242 / M.2 2280
Non-operating shock:1500
Non-operating vibration:4.9
Operating shock:1500
Operating temperature (T-T):0 - 70
Operating temperature range (T-T):0 - 70
Operating vibration:5
Storage temperature (T-T):-55 - 85
Storage temperature range (T-T):-55 - 85

Weight & Dimensions

Depth:0.866 / 1.17 / 1.65 / 2 / 2.75 / 3.15 / 3.98
Height:0.0878 / 0.138 / 0.15 / 0.276 / 2 / 3.15
Weight:0.145 / 0.176 / 0.194 / 1.06
Width:0.0878 / 0.15 / 0.866 / 1.17 / 2.75 / 3.98