Larger capacity USB case - Holds 51pcs : slots designed for thumb drives of different size of various brands such as SanDisk/ Samsung/ Netac/ PNY/ INLAND/ TOPESEL/ Enfain/ Mosdart/ SamData 64GB 128GB 16GB 256GB 32GB 2GB, and more USB drives, thumb drive, memory cards. It's both a flash drive organizer and a sd card case | Wider compatibility - USB holder case organizer with detachable stretchy foam which includes slots of different size fits usb drives snugly. 1.07"*0.33"(4) big slots fits for wide flash drives like retangular wooden flash drives; 0.71"*0.39"(28) medium slots suitable for usb sticks of standard size ; 0.43"*0.2"(9) small slots for small-sized or mini thumb drives. Half open elastic band slots fits for SD SDXC SDHC micro sd cards | Flash drive hard carrying case - portable size 7.36"x5.28"x3.58" with strong long strap, hold usb drive organizer in hand, sling thumb drive case over your shoulder or pack it in your backpack/suitcase, easy to carry, keep all electronic accessories in one place, and you can finally stop asking "where have I put my usb drives?" | Hard Case & Inner foam with pre-cut slots make great protection - hard case made of water proof and shockproof EVA protect your thumb drives from drops, scratch, humidity, dust, etc. The outside jersey cloth have a much more comfortable hand feel. The inner foam with pre-cut slots can hold your flash drives just enough tightly, it will stay right in the slot until the next time you need it | Practical and useful usb holder organizer - If you have multiple usb drives or memory cards, this flash drive holder case will make your work more effecient and more enjoyable. Take more time to embrace the joy, less time to searching for USBs