Secure Digital High-Capacity (SDHC) Flash Memory Card SDHC (Secure Digital High Capacity) comes in three forms; a full size SDHC, miniSDHC and microSDHC. Additonally SDHC are classified in different numbers providing different read and write speeds. Check to ensure your device is compatible with SDHC and which class is required. Contact Tapeworks Texas Inc toll free and one of our expert representatives can assist you! All Items Here are all the products in this category: Transcend TS16GSDHC10 16GB SDHC Class 10 16GB SDHC Class 10 with 16MB/s Write and 20 MB/S read $ 59.00 Transcend TS32GSDHC10 32GB SDHC class 10 Transcend 32GB SDHC Class 10 $ 119.95 Transcend TSRDP7K USB Flash Memory Card Reader & Hub USB Flash Memory Card Reader & Hub $ 16.99