SanDisk is proud to announce our newest format and capacity to the SD card family: microSD High Capacity (microSDHC) 4GB flash card. Included as bonus is our new MicroMateTM SD/SDHC compatible, high-speed USB 2.0 Reader! This will help and ensure your transition from the microSD format to the microSDHC format for our cards and for compatible host devices. Also comes with a full size SD adapter to fit into devices with an SD slot. Not all devices support microSDHC 4.0GB cards. Please contact your device manufacturer for details. To ensure compatibility, look for the microSDHC logo on the product or packaging of your new phone or PDA.

REVIEWS:
1) works fine: after three attempts to get this 4gb micro sd card, i finally got it.
it works just fine, if you are going to buy this, make sure you try it as soon as you get it, because the first one I bought was defective (corrupted), and I didnt use it until 3 weeks after I got it, I was having troubles when claiming a refound
2) sandisk 4gb sdhc: i bought this product to use in my htc atlas pocket pc and i am extremely satisfied with its performance capabilities. this card is going for $100 in local electronic stores (we all know which ones), and thats without the sd converter and reader. shipping was fast and i recommend this product to anyone with a capable device.
3) Not bad: The first one I received didn"t work properly, however, ChiTek replaced the item quickly with no trouble. The item has worked properly since. I am very satisfied with the product, now that I have it working properly.
4) Arrived as Advertised + Works On BlackBerry 8830: Works on BB 8830 running OS 4.2.2.176.
Easy file drag and drop on Mac OSX.
Fast writing speeds.
Arrived as advertised with reader and SD adapter.
As soon as I inserted it, BB automatically formatted (created BB folder and subfolders such as system, music, video, ringtones, etc).

5) Sandisk Micro SDHC 4GB: Nothing more to say than this is a great product and that my vendor jowjow was very fast delivering it.