SDA 2.00 specification speed performance rating: Class 6.
High storage capacity for high-resolution photo images, high-definition video images, music, and many more.
Waterproof, dustproof, ElectroStatic Discharge (ESD) proof and extreme temperature resistant. They are built to withstand any environment your device can.
With the best components in the industry, they last up to 10 times longer.
Weighing less than 2.0 grams and are about a size of a postage stamp.

ATP Class 6 4GB ProMax SD High Capacity (SDHC) is the latest addition to ATP ProMax family. Built upon SD Association 2.00 specification which enables capacities of 4GB up to 32GB, it maintains a minimum sustained data transfer speed rating of 6MB/sec.

What is SDHC?

SDHC is the new generation SD card built upon the new SDA 2.00 specification, which allows SD cards to reach capacities of 4GB up to 32GB. The new specification is released in response to growing demand for high quality photo images and high resolution video recording capabilities which requires large amount of storage capacity.

What is Class Speed Rating?

The SDA defines 3 speed classes in order to let users identify speed and performance capabilities of SDHC cards and the host products. The speed class rating specifies a minimum sustained write speed for SDHC cards.

Class 2: 2MB/sec
Class 4: 4MB/sec
Class 6: 6MB/sec


Note: SDHC cards are not backwards compatible with standard SD host devices. Standard SD cards are forward compatible with SDHC host devices. To ensure compatibility, look for the SDHC logo on the host device packaging. Please check with your device manufacturer for their current/future supported SDHC devices.

ATP Part Numbers: AF128MDP, AF256MDP, AF512MDP, AF1GMDP, AF2GMDP
Capacities:128MB to 2GB
Connector Pin: 11 Pins


Waterproof: Yes
Dust Proof: Yes
ESD Proof: Yes
Extreme Temp: Yes

Electrical characteristics

Supply voltage SD: 2.7V-3.6V
Low Power Consumption: (<50ma)
Clock speed: 50Mhz max.


Characteristics Operating Temp: -25C to 85C
Storage Temp: -40C to 85C
Humidity: 8 – 95 % non-condensing
Vibration: 15Gs peak-to-peak Max
Shock: 1000G


MTBF (mean time between failures): 1,000,000 hours
Number of insertions: 20,000 minimum
Data retention: 10 years
Endurance: >100,000 cycles (read/write and erase)

Physical characteristics

Protected Switch: yes
Length:21.5mm +/- 0.1mm
Width: 20mm +/- 0.1mm
Thickness: 1.4mm +/- 0.1mm
Weight: 1.0g max

Warranty: 5 Year Limited

Getting Started