Transcend SSD720

Both the SSD720 and SSD320 use matching all-metal chassis. The height of the drives is 7mm, making them viable options for nearly all laptops, including some ultrabooks. Transcend doesn't include anything else but a 2.5" to 3.5" adapter and mounting screws in the retail boxes.

Delving inside the chassis reveals eight 24nm SanDisk Toggle-Mode MLC NAND packages. There are another eight on the other side of the PCB, meaning that the packages are dual-die (2x8GB). This NAND is exactly the same (part numbers are a match) as what Corsair uses in their Force GS SSD.

In addition to the another eight NAND packages, the other side of the PCB houses SandForce's SF-2281 controller. As usual, there's no DRAM present because SandForce relies on on-die caches.


The SSD320 is a bit more interesting. That's Micron's 25nm asynchronous MLC NAND but with Transcend's labels. Similar to the SSD720, there is a total of sixteen NAND packages, each consisting of two 8GB dies. It's not abnormal for SSD manufacturers to rebrand the NAND they're using and for example OCZ and Kingston do it, although I'm personally not a big fan of this trend because it adds confusion. I do see the reasons behind it, though, as buying NAND in wafers and then packaging is cheaper than buying pre-packaged NAND straight from the manufacturer. 

Transcend's SSD Toolbox: SSD Scope

Transcend offers a toolbox for their SSDs called SSD Scope. There is no software CD included in the packaging, but the toolbox is available as a free download at Transcend's website. The toolbox has no clone function but there is a separate TSClone application included in the SSD Scope installer.

SandForce actually offers a toolbox to their clients, but many have decided not to distribute it (there may be some licensing fees involved). I have a feeling that SSD Scope is essentially SandForce's toolbox with Transcend's own skin. The functions are very basic: It can read your drive and SMART information, diagnose, erase and update the drive. For some reason, only the update function works in addition to SMART data, when trying to scan or erase the drive the software says "selected drive is not supported". It's possible that Transcend simply haven't enabled this function in the software or drive's firmware, but as it stands the toolbox is relatively redundant because there are plenty of freeware SMART tools that can do the same.

Test System

CPU Intel Core i5-2500K running at 3.3GHz (Turbo and EIST enabled)
Motherboard AsRock Z68 Pro3
Chipset Intel Z68
Chipset Drivers Intel + Intel RST 10.2
Memory G.Skill RipjawsX DDR3-1600 2 x 4GB (9-9-9-24)
Video Card XFX AMD Radeon HD 6850 XXX
(800MHz core clock; 4.2GHz GDDR5 effective)
Video Drivers AMD Catalyst 10.1
Desktop Resolution 1920 x 1080
OS Windows 7 x64


Introduction Random & Sequential Performance
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  • Rick83 - Friday, January 25, 2013 - link

    I have two SSDs that were reasonable unique when I got them, both from Transcend, so I am not sure how you can complain about that.

    One is an IDE Flash module, and the other is a 44pin IDE 2.5"SSD. Both use SLC flash.
    They were in the industrial/module market quite early, and quite strongly.

    Adding some cheaply implemented Sandforce drives allows them probably to sell more volume, and thus get better pricing on flash. I'm not sure if that is their main market though.

    Meanwhile, there is slightly more competition in IDE SSDs, but then that market is also not going to grow very much. Of course there are also SSD and USB modules available, so that's also an interesting niche, where there is a different market situation, than for "mainstream" SSDs.

    Finally, I consider the Transcend brand to be relatively strong in the flash memory market, they've been present for quite a while.
    Customer support in Europe is also reasonably good.
  • Kristian Vättö - Friday, January 25, 2013 - link

    I'm aware that Transcend has "niche" products that are aimed for very specific uses. What I meant, however, was that their mainstream (mainly 2.5" SATA) lineup is not very special. Like I said, there are probably a dozen manufacturers with similar SandForce SSD lineups.

    The final part of the article was merely a general observation of the current SSD market, I didn't aim it specifically at Transcend (it's something I've been wanting to say for a while). Transcend does have fairly large presence in Europe (I'm from Finland myself) when it comes to SD cards and USB sticks, but not really in SSDs (then again, SSDs aren't everyday items yet, so that matters too).

    Overall I'd just like to see more non-SF SSDs. You can't really gain any major market share with SandForce drives anymore, there are too many competitors.
  • kmmatney - Friday, January 25, 2013 - link

    It is nice that they include a toolbox. I have a few SSDs in Windows XP machines at work, and I like being able to manually TRIM the drive. I buy Samsung and Intel SSDs just for the toolboxes they provide, but this would be a viable option now as well.
  • Kristian Vättö - Saturday, January 26, 2013 - link

    Keep in mind that the TRIM or secure erase functions in the toolbox do not work, like I mentioned in the article.
  • Death666Angel - Friday, January 25, 2013 - link

    It's really sad that most of these SF based drives aren't even that much cheaper (if at all) compared to the big brand names you mentioned.
  • Samus - Saturday, January 26, 2013 - link

    Right. There's no logical reason to buy a sandforce drive when the Samsung 830/840 and Crucial M4 have the same (or lower) price with superior reliability and relatively identical performance.

    Then there is the 840 Pro which has ridiculous performance and presumably excellent reliability.

    Don't get me wrong though, I think the Intel SSD 330/335 is a great value and it is the only Sandforce drive I'd buy. Every OCZ SF drive I, my family, or friends, have ever had, has inexplicably failed.
  • speculatrix - Saturday, January 26, 2013 - link

    Having experienced OCZ technical support when trying to resolve linux driver problems with their Revo cards (ongoing for 3 months with tgem holding onto $1000's of worth of cards) I shall never buy an OCZ product ever again.
    They fail to communicate or use their own ticketing system effectively, pronounce testing done when it hasn't, and generally all we feel is that our time and money has been wasted.
  • embzyk - Sunday, January 27, 2013 - link

    I see write amplification less than 1.0 a logical reason, and the reason why every SSD I buy is sandforce based. The first one I ever bought died, but its replacement and 7 others are going strong - including 4 from OCZ.
  • twotwotwo - Friday, January 25, 2013 - link

    "The client SSD market currently has more manufacturers than it can feed in the long run."

    If the fixed costs are low enough, it may take the small ones a long time to go away--if everyone pays the sameish rate for NAND, controller licenses, etc., they may be more like PC builders than HDD makers.

    If that changed significantly--say, if SandForce and other competitive controllers were bought by certain makers who used them exclusively--that math could change quickly.
  • hfm - Friday, January 25, 2013 - link

    I bought one of the 512GB SSD720 a while back because it was the cheapest 500MB/s 512GB SSD at the time I bought it (paid $399, walked to B&H to get it). I have been extremely happy with it. The Samsung 512GB drive was much more expensive at the time. My primary use case for it is gaming laptop, so I felt the cost increase for a better drive would see a negligible boot/load time increase.

    Of course I keep it backed up by cloning to a second spinner in the laptop and then again to my nas, so I don't completely trust it's long term reliability. It's been bullet proof and screaming fast so far.

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