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We don't know when or if this item will be back in stock.
  • 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
pOWER Cyber Power

Product Details

  • Product Dimensions: 6.2 x 5 x 1 cm ; 132 g
  • Shipping Weight: 45 g
  • Item model number: USM4GH
  • Date first available at Oct. 3 2008
  • Average Customer Review: Be the first to review this item
  • Amazon Bestsellers Rank: #736,086 in Electronics (See Top 100 in Electronics)
  •  Would you like to give feedback on images or tell us about a lower price?

Product Description Product Description


From the Manufacturer

Take your data with you
Presenting Sony's smallest USB flash drive memory storage device, the Micro Vault Tiny. As a leader in data media and portable computing, Sony understands the need for taking your data with you. That's why we've developed and extended new concepts, new applications and new approaches to mobile storage. The Micro Vault Tiny is available in storage capacities of 512 MB, 1 GB, 2 GB and 4 GB and comes with a versatile, clip on carry case. This USB flash drive was designed with your everyday needs in mind.

Virtual Expander Software:
This preloaded automatic file compression/decompression software allows for up to three times the storage capacity.
watch the demonstration below for more details

About Sony Media & Application Solutions:
From the very beginning, Sony has been a leader both in recording hardware and recording media. That's not by accident; it's by design. Sony has always developed new recorders and media side-by-side - designed together to integrate perfectly. It's a hardware/media synergy that has helped make Sony the world's #1 recording company. In fact, this synergy stands behind the latest Sony breakthroughs in optical and tape memory and flash memory. You can see it in Sony Blu-ray Disc and HDV media, which support full HD 1080 high definition recording. You can see it in DVD media that offers the accuracy, compatibility and reliability of Sony AccuCORE technology. The Sony name also stands for camcorder media from the industry leader in camcorders, data media from a major name in PCs, and and audio media from one of the world's premier audio companies. Our Global Environmental Management System (GEMS) includes initiatives more stringent than governments require. Post-consumer recycled packaging and a switch to eco-friendly plastics are just a few of the ways Sony is helping to provide a more sustainable environment for the generations to come. So whether it's optical or tape media or flash memory, expect industry leading products from just one company. Sony.

Customer Questions & Answers

Customer Reviews

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Most Helpful Customer Reviews on (beta) HASH(0x9ecb4498) out of 5 stars 15 reviews
7 of 8 people found the following review helpful
HASH(0x9ecc1054) out of 5 stars 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
HASH(0x9ecc145c) out of 5 stars Very small, but... July 27 2008
By L.. 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
HASH(0x9f3a3e70) out of 5 stars Works fine for its purpose Feb. 22 2009
By Jared - 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
HASH(0x9ecc14d4) out of 5 stars Great for Blu-ray Jan. 12 2009
By Santa - 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
HASH(0x9ecc16c0) out of 5 stars after 5 months mine is dead May 22 2008
By J. Miller - Published on
When I saw this thing in the store I had to have it. I got it for $35 at best buy. when I first started using it I noticed it was really slow! I dont think this is a very useful 4GB drive. I think my DSL is faster!

After about 5 months of using it 2-3 times a week it died. when I plug it into any computer it told me the device was not formated. I tried to format it but it would fail. I went to Sony's web site and there is a format tool to fix this problem but the tool failed. I called sony and they said it was a bad sector and thats why it will not format. I ask if this was a factory defect and they told me NO and that they would not replace it!!! After arguing with them for 45 min they said I could ship it to them for a replacement as long as I provide the receipt from 5 months ago.

This might be the worst $35 I have spent.

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