The xD-Picture Card Type H is a high-speed variant of the xD memory card format, designed to deliver faster read and write performance compared to the Type M series. Developed by Olympus and Fujifilm, Type H cards supported capacities up to 2 GB and were optimized for capturing high-resolution photos and video. Their improved speed made them particularly beneficial for burst shooting and quick data transfers. Although discontinued and replaced by more universal SD cards, Type H remains essential for older compatible cameras.