SanDisk's Ultra Memory Stick PRO-HG Duo is currently the fastest portable media card that SanDisk offers in this format. It is compatible only with Sony products, and this model is intended mainly for use with higher-end video recorders and cameras. The reason for that is this card's fast write speed, reaching up to 30 MB/s of sustained data transfer. This makes it the best SanDisk Memory Stick for HD video or intense multi-shot photography. Data transfer when uploading to a computer occurs at the same rate. This card has a higher price point than SanDisk's other models, and it is available in multiple capacities, up to 32GB.