Memorex 4GB SD High Capacity (SDHC) TravelCard is designed for users who demand ample storage space. Based on the new SD 2.0 specification, the Memorex SDHC TravelCard is optimized for use with your SDHC-compatible devices.* Memorex SDHC 4GB TravelCard features fast transfer and write speeds and a write/protect switch for additional safety and is ideal for storing your high quality photos, music and video files on the go.