Final Words

Phison's PS3108 and the BP3 are a pleasant surprise. After reviewing the Crucial v4, I didn't have high hopes with the BP3 given the miserable performance of Phison SATA 3Gbps controller, but I was proven wrong. That's not to say that the PS3108 is anywhere close to challenging today's high-end controllers such as Samsung MDX and OCZ Barefoot 3, but at least the performance is no longer from 2009. I also doubt Phison is aiming the PS3108 for high-end market as in general their controllers have been found in low-cost SSDs, and shifting the market target would require big investments and possibly more R&D time as well. The low-end SSD market is also interesting in the sense that there is less competition than in the high-end market: the main options are Samsung's SSD 840, a bunch of SSDs from OCZ, and some SF-2281 based SSDs that compete at the lowest prices. 

Pricing is definitely the biggest advantage of the BP3. It's considerably cheaper than other mSATA SSDs and is in fact cheap in terms of 2.5" SSD prices as well. However, Phison's (and MyDigitalSSD's) long term reliability is a big question mark as Crucial v4 is really the first Phison based SSD from a big SSD manufacturer. If you're willing to be a guinea pig, the BP3 is an affordable mSATA SSD choice and due to its price, I would recommend it over the SMART—and either way, it's still significantly faster than any hard drive you'd have in a laptop.

There is one general thing about the SSD market that I've been wondering for quite a while, though: is there really a market for mSATA SSDs? I see absolutely no reason why a desktop user would pick an mSATA SSD over a regular 2.5" SSD because 2.5" SSDs are usually cheaper and also faster (mSATA form factor is limited to four channels while most controller have eight). Only very few motherboards come with an mSATA slot anyway, so that diminishes the market even more.

The notebook market is fairly limited too as most laptops are still using standard 2.5" hard drives. The manufacturer may offer SSDs in some models or as built to order but those are still 2.5", an empty mSATA slot is a rarity due to space constraints. Popular SSD-only notebooks such as ASUS' Zenbook series and Apple's MacBook Air use custom SSDs, so mSATA is of no use with those either. That basically leaves us with a very limited amount of notebooks that even have mSATA capability to begin with. Out of those systems, most will likely already have an mSATA SSD installed when the system is purchased, so really the market for retail mSATA SSDs is consumers who have bought a notebook with an mSATA SSD (probably a small caching-only SSD) and want to upgrade the SSD and make it the OS/Apps drive. That's not a very big market if you ask me, at least right now.

I may be missing some scenarios where mSATA SSDs are used but I think it's safe to say that mSATA has not really taken off and the market for retail mSATA SSDs is close to non-existent. MyDigitalSSD does have the potential to grab a large share of that market, particularly for cost-conscious users where the BP3 might be attractive, but given the early nature of the controller I'm not sure most people would be comfortable buying the BP3. Looking at the SMART, we generally know what to expect from SF-2281 SSDs, which is good, but the pricing can't compete with other SF-2281 based mSATA SSDs. I would pick Crucial's M4 mSATA SSD over the SMART since it's considerably cheaper, but the BP3 is definitely worth a consideration if you're looking for an affordable mSATA drive and are willing to settle for an unproven drive. 

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  • Chupk - Wednesday, January 23, 2013 - link

    I love to read your reviews. And just want to give U thumbs up here knowing U R dealing with important exams at the same time while U R publishing high quality reviews.
    It's interesting to know U R stuck with word processing & HTML editing! >.<
    I have long passed my days in University & I'm working as a Consultant in a Hospital. Just want to say the exams U R facing R kinda important. They should be your 1st priority at least for the moment!
  • Stranman - Wednesday, January 23, 2013 - link

    It would be nice to see a comparison or charts of mSata only drives (apples to apples), not apples and oranges. If I'm looking for a mSata drive, I don't care to see standard 2.5" SSD drives listed.
  • Kristian Vättö - Wednesday, January 23, 2013 - link

    I thought about that at first but the problem is that we have only reviewed two mSATA SSDs on top of these MyDigitalSSD ones. I do have a couple more in the lab now, so stay tuned for more mSATA stuff. I think it's also worthwhile to compare them to similar SATA 2.5" drives because there is a performance difference and some might go with the 2.5" because of that.
  • Sp4rrowhawk - Wednesday, January 23, 2013 - link

    I'm a big thinkpad fan. And while my T410 doesn't have an mSata bay, both the T420 and T430 do.

    Also I own a home server and have a dedicated system drive. My (new) motherboard has 8 Sata ports or 7 plus 1 mSata port. As such I can't add one more drive but I can save up a 3.5" bay that would otherwise be used by my system drive. So I'm planning on buying one for that use-case. Obviously I don't need 256GB for my system drive though...
  • ChristopherD - Wednesday, January 23, 2013 - link

    Being a traveling photographer, speed and portability is always crucial.
    mSATA SSD form factor coupled with an external thunderbolt chassis would be a great combo that I would purchase myself. When I have only 30mins to edit and backup a 100GB folder of photos/videos and leave a site an external SSD this small would be great.
  • Sottilde - Friday, January 25, 2013 - link

    It seems that the M4's performance is (surprisingly) just a bit worse than the BP3's, and the M4 mSATA is just a bit more expensive. However, I'm doubtful of the longevity of Toggle-mode MLC; the last review I read on it said that it was guaranteed for only 1000 cycles. In addition this brand has a bit of a dubious name.

    Given those facts, which mSATA drive would you all choose?
  • JeBarr - Friday, January 25, 2013 - link

    A full size ATX desktop board or even some mATX board users could make use of mSATA PCI-E x1, x4 or x8 with 1, 2, 3 or 4 drives in "raid". These add-on cards already exist but the price is out of reach for most outside of enterprise.

    I'd much rather swap out a dead mSATA drive rather than purchase another Revo drive that slowly dies.
  • SSDuser101 - Tuesday, February 12, 2013 - link

    MyDigitalSSD has been around a while now. Since 2007 when they introduced the 1st upgrades for netbooks like the Asus 901 Mini PCI-e SSD.

    They have been selling mSATA SSD longer than anyone with nothing but great reviews.

    Also regarding Sottidle’s post about Toshiba toggle nand. He must be thinking of TLC Triple Layer Cell Flash like what ships on the Samsung 840 drives because those do have around a 1K Cycle life span. On the contrary Toshiba Toggle NAND is the best on the market when it comes to MLC flash with a 5K R/W/E cycle minimum.
  • systemBuilder - Saturday, June 27, 2015 - link

    Since 99% of all macbooks are shipped with a disk drive that is too small, because of Apple's horrific pricing policies, well yes, there is a huge market for mSATA drives, but only for macbooks from 2014 and earlier. The new 2015 macbooks have new PCIe drives that run 3x faster, but are not compatible with mSATA.

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