Zectron Digital 8GB Class 10 SDHC memory card is ideal for all uses including HD video recording due to it"s very high speed. In our tests these cards show a sustained read speed above 17mb/s and a sustained write speed above 15mb/s making them faster than most other memory cards on the market. This product is brand new and comes supplied in a protective memory card case. Class 10 SD memory cards are the fastest speed available and can cope with very large files without the risk of playback lag. If you are using an SDHC memory card in a camera with very high megapixel rating or recording HD video we would recommend using a Class 10 card for optimal performance.