To choose between SD Card and SDHC, rate them on the comparison parameters by entering scores (+ve or -ve) in the comparison tool.
The total points are automatically shown in the top row. This should help you decide.
Not backward compatible; Works only with host devices that are also SDHC
Size/Shape:
0.94" x 1.25" x 0.08" (24 mm × 32 mm × 2.1 mm)
Same(0.94" x 1.25" x 0.08")
Types:
Standard SD, mini SD, micro SD
SDHC, mini SDHC, micro SDHC
Capacity:
From 8 MB Upto 16 GB
From 4-gigabytes up to 32-gigabytes
Speed:
Slower as compared to SDHC
Faster((Class 2, Class 4, Class 6 for minimum sustained Data Transfer Speeds of 2MB/sec, 4MB/sec or 6MB/sec))
Stands for:
Secure Digital Card
Secure Digital High Capacity
Filesystem:
FAT16
FAT32
What is it?:
Secure digital or SD card is a flash memory card format.
Physical Size:
The standard size of SD card is of 24 mm × 32 mm × 2.1 mm.
Use:
SD card is used as a storage media in the following: Sony PS 3, Wii, GP2X GNU/Linux based portable games console, DAB radios, Global Positioning System receivers, Camcorders, cellular phones, digital audio players, PDAs etc.
Developed:
It was developed by Matsushita, SanDisk and Toshiba in 1999.