ATP ProMax® SDHC cards are high speed flash memory cards, designed for any SDHC compatible device.  ATP ProMax® SDHC cards are rated at 'Class 10', with the highest class rating possible and with super fast data transfer rate up to 150X or 22.5MB/s. This means less lag between shots in your digital camera, no dropped frames or video lag during high definition video recording, and less waiting for file transfers.

ATP ProMax® SDHC cards are designed for the most extreme interpretations of mobility. They are built with ample protection from water, dust, ESD (Electro-Static Discharge), and an extreme storage temperature range of -40 and 85 degrees Celsius. These memory cards will withstand any abuse your device can encounter.

Features:

• High data transfer rate: up to 22.5 MB/s
• Tough & Highly Durable: Waterproof, dust proof, ESD proof, and extreme temperature resistant.
• Compatibility: ProMax® SDHC are compatible with all digital cameras, digital music players, mobile phones, PDAs, and other devices featuring SDHC slots.
• SDA 2.00 specification speed performance rating:  Class 10. 

Phoronix.com

Coming out of this review, we were extremely impressed by ATP Electronics and their 150X ProMax Secure Digital series.

Not only was the flash memory card read and write performance on track, but we were utmost pleased by the above-average build quality. With safeguards against water, ESD, dust, and extremely low/high temperatures, this is definitely one of the most durable cards available on the market.

Testing Method:
The data below were derived by timing how long the Nikon D80 took to write out 6 RAW images, using "continuous shooting" mode. Timing was commenced when the camera's card status light illuminated, and was stopped when the light went out. All cards were formatted in the camera prior to testing.