This listing is for a pair of Hoodman Professional Performance 4GB SD memory cards. Designed for demanding applications, these cards feature SLC (Single-Level Cell) technology for enhanced durability and faster performance, rated at 150X speed. Ideal for digital cameras, camcorders, and other devices requiring reliable and quick data storage. Both cards are in good pre-owned condition, ready for your professional photography or videography needs. Grab this reliable storage solution for your gear today!