Delkin BLACK memory cards are designed to be the strongest memory cards ever built, and are virtually unbreakable. BLACK SD cards utilize a solid molded design where the “brains” of the card are completely sealed inside and protected, making them 3 times stronger than a regular SD card and able to withstand over 45 pounds of force or impact. They, as well as BLACK microSD, also provide protection against water damage and foreign debris, even when fully submerged for up to 72 hours. BLACK CF cards utilize a molded and anodized metal outer case, which protects them from up to 80 pounds of force or impact. Unlike regular memory cards that use a standard plastic housing that is prone to breakage or damage during normal wear and tear and storage, BLACK memory cards take advantage of stronger materials to protect them from damage over the lifetime of the card.