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by Sony

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  • Sony's smallest USB flash drive
  • Pre-loaded with Virtual Expander software for up to three times the storage capacity
  • Fun, stylish, ultra-compact design available in 512 MB, 1 GB, 2 GB, and 4 GB Capacities
  • Plugs directly into USB 2.0 and 1.1 ports
  • Versatile, clip-on carry case included
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Product Details

  • Product Dimensions: 6.2 x 5 x 1 cm ; 45 g
  • Shipping Weight: 454 g
  • Item model number: USM4GH
  • Date first available at Oct. 3 2008
  • Amazon Bestsellers Rank: #351,513 in Electronics (See Top 100 in Electronics)
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Product Description Product Description


Product Description

Sony 4GB Micro Vault Tiny with Virtual Expander
A completely new form factor, Micro Vault Tiny is Sony's smallest USB Flash Drive to date. The Tiny measures just ?\" by 1\", but offers the same plug-and-play functionality of standard USB Flash Drives. Each capacity sports a different color and comes with a color coordinated case, perfect for clipping it onto a notebook or key chain.

Customer Reviews

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Most Helpful Customer Reviews on (beta) 15 reviews
7 of 8 people found the following review helpful
Stylish but slow Dec 11 2007
By Paul Conigliaro - Published on
I picked up one of these on an impulse when it was on sale at Best Buy.

The form factor is great. I was already on the lookout for a tiny sub drive like this. Though it might be so small to get lost easily. Fortunately it comes with a soft rubber case to bluk it up a little while in your pocket. The build is nice to. It feels really solid. Even if it gets stepped on, it'll last.

As far as tecnical performance, however, I can't say it's all that great. Write speeds are horrible* (100MB file, sustained write speed of around 1.1 to 1.2MB/s... and yes, that's on a USB 2 port). It chokes even more if copying a folder of several files. Right now I'm looking at a 15 minute wait to copy a folder of 700 items at 105.3MB total size. That's just not right (no pun intended).

So, for style points, it's great. For technical performance, I can't recommend it.

*These particular tests were performed on Mac OS (both Intel and PPC, Tiger and Leopard), though similar performance occured on Windows boxes (XP, no compression software).
3 of 3 people found the following review helpful
Very small, but... July 27 2008
By S. Gehret - Published on
I love the small form factor of these tiny usb drives; but, I really hate how very slow they are. The throughput is extremely slow compared to all the other usb drives I have. I have Sandisk, A-Data, Ativa, Verbatim, and a no-name usb drives and all are many times faster than my 4gb Sony Micro Vault. To load up 3-4 gigs, it takes several hours. To do the same on my 4gb Sandisk or 8gb A-Data, it is less than an hour.

My tech experience is very high. My testing was done on a Vista Ultimate 64bit laptop. I also have 2 2gb Sony Micro Vaults and they are just as slow. But at 2gb, it was not such a big deal.

If you just want something very tiny, then this is ok. But if you really also are concerned with performance, then buy something else. I recommend Sandisk.

3 of 3 people found the following review helpful
Works fine for its purpose Feb. 22 2009
By Jared Speaker - Published on
I recently purchased a Sony Blu-ray player which required a usb flash drive for storage purposes (downloads). The problem is the usb slot in the back is too small for a regular sized usb flash drive...probably designed like that on purpose to increase their own flash drive sales. Well, it worked, they got a sale.
The flash drive works fine...will likely never leave the back of the blu-ray player.
2 of 2 people found the following review helpful
Great for Blu-ray Jan. 12 2009
By White Energy - Published on
Verified Purchase
This flash drive is a bit pricey, but it works great in my Sony BD-350 blu-ray to enhance java content from blu-ray disks. Most flash drives won't fit in the BD-350, but this one fits like a glove.
1 of 1 people found the following review helpful
Sony Mico Vault Tiny 4GB May 30 2009
By DeanL - Published on
Verified Purchase
Couldn't get any smaller.

Bought it to re-flash my Sony DVR. The DVR is picky about USB drives. It worked fine. Now I use it as a genereal purpose flash drive. I don't use the compression. I suspect that would slow it down.

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