Transcend StoreJet 25M3 and 25D3 USB3 HDD review

vbimport

#1

I just posted the article Transcend StoreJet 25M3 and 25D3 USB3 HDD review.

USB3 is becoming popular, and it’s much faster than USB2. This makes USB3 a very desirable feature to have for your backup needs.

In this review we look at two new USB3 external HDDs from Transcend, in the shape of the StoreJet 25M3 and 25D3.

Let’s find out how they perform.

Read the full article here: [http://www.myce.com/review/transcend-storejet-25m3-and-25d3-usb3-hdd-review-34129/](http://www.myce.com/review/transcend-storejet-25m3-and-25d3-usb3-hdd-review-34129/)

Feel free to add your comments below. 

Please note that the reactions from the complete site will be synched below.

#2

Thanks for the review, Dee. :slight_smile:

I have a couple of external Samsung S2 Portable 640 GB drives (2.5" USB 2.0 containing two different versions of the HM641J[U]X[/U] drive), and they are less power-hungry than most of my other older 2.5" external drives - based not on direct power measurements but rather on which drives succeed or fail to start depending on the port and cable used.

Given that my drives fail to start when using some combinations of USB ports and USB cables, and given that one of these drives IIRC has 0.8 A max power requirement, I’d say it’s unlikely that the Transcend drives stay within the official power specs of 0.5 A for USB 2.0 - but this is obviously only an educated guess since the controllers in the USB 3.0 drives are not the same as in my USB 2.0 drives. Since the official power spec for USB 3.0 has been increased to 0.9 A, the Transcend drives are probably within the new spec, but again only an educated guess.


#3

From the review:

There is only a 7% difference between the best and worst result, but the non-zero based X-axis makes it seem at first glance, that the fastest drive is more than twice as fast as the slowest drive.

This is the kind of graph manipulation I don’t like in many reviews around the Internet, and that I hoped to not see in reviews here. :wink:


#4

The graph is not manipulated, it’s the default from Excel.


#5

[QUOTE=DrageMester;2543191]From the review:

There is only a 7% difference between the best and worst result, but the non-zero based X-axis makes it seem at first glance, that the fastest drive is more than twice as fast as the slowest drive.

This is the kind of graph manipulation I don’t like in many reviews around the Internet, and that I hoped to not see in reviews here. ;)[/QUOTE]Ah, I see what you mean, now. :o
[B]Fixed[/B]


#6

[QUOTE=Dee;2543277]Ah, I see what you mean, now. :o
[B]Fixed[/B][/QUOTE] That’s much better, thanks! :flower:


#7

This is awesome, I also had rumors that Dell is planning to release external HDD’s that work like you normal memory stick and the first sizes they are planning to release range from 4 TB and they are willing to sell them at a cheaper price that is between $40 to $50.

I can’t wait to see release of this formation from Dell.

:slight_smile:


#8

“If you have an older motherboard which doesn’t already have USB3 onboard, there is no need to panic. You can quite easily add USB3 support to your existing motherboard by means of a USB3 PCIe card. They are inexpensive, and a good card can be purchased for under £30.”

It should work fine in a USB 2 port though right? Just slower?


#9

Yes it works fine on a USB2 port, just much slower.


#10

[QUOTE=Dee;2548179]Yes it works fine on a USB2 port, just much slower.[/QUOTE]

I bought a StoreJet 25M3 500GB yesterday - it just SUCKS on USB2.0 mode… just over 10MB/sec write and a mere ~25 read… I 've had so much better performance for years… I m taking it back for sure… It should have a warning on the box “crippled USB 2.0 compatibility”…


#11

It’s only crippled on USB2 because USB2 is the limiting factor. Even an SSD on USB2 sucks, USB2 can’t even supply enough bandwidth to write a DVD disc in a modern DVD drive at full speed.
That is why i said in the article that a USB3 card (if your motherboard doesn’t have it built in) makes perfect sense if you wan’t to get the best out of these USB3 HDDs.


#12

With all due respect, I believe you’re wrong in your thinking - here’s why :

With USB2.0, on the same laptop computer (ACER 8920), I m used to getting roughly 30Mbytes/Sec both for read & write (big files) on my external USB2.0 WD Passport.

With Transcend 25M3, the USB 2.0 compatibility mode offers me almost 1/3 of that for write operations. Even if USB3.0 mode is a lot faster (I still haven’t tested), I would expect to get the maximum transfer possible with USB2.0 operation that most computers have and not a crippled one (~11MB/sec). With one word : USB2.0 operation is crippled - the device is not using the full transfer capabilities of USB2.0.

To be quite fair, its perhaps its because the laptop isn’t providing eough power to the USB device - I will test with the extra power cable & I’'ll get back to you. But still I think Transcend 25M3 is crippled for USB2.0 operations on my laptop, which is a shame.


#13

[QUOTE=AnoDyNoS;2548351]To be quite fair, its perhaps its because the laptop isn’t providing eough power to the USB device - I will test with the extra power cable & I’'ll get back to you.[/QUOTE] In my experience, USB harddrives either get enough power and work at full speed, or they don’t get enough power and either fail to start or disconnect immediately after starting. I’ve never seen a case of reduced speed due to lack of power.

Welcome to the MyCE forums! :slight_smile:


#14

From the review
25M3 connected to USB2

BTW: Did you reformat the partition to NTFS and try it?