The Gembird FDI2-ALLIN1-03 is an internal card reader designed to expand your computer's storage and connectivity options by fitting into a standard 3.5" drive bay. It serves as a versatile hub for various memory cards, including SD, MMC, RS-MMC, M2, MicroSD, MS, MS Pro, MS Duo, MS Pro Duo, and Extreme Digital, allowing you to transfer photos and files from your mobile devices directly through the PC case. Beyond card reading, this grey unit features an integrated 2.5" SATA bay, which lets you install a compact HDD or SSD for additional system storage. It connects via internal USB for the reader functions and SATA for the drive, while a built-in LED indicator lets you know when the device is active. Weighing 230 g and measuring 120 x 100 x 25 mm, it provides a tidy way for users to add both a drive and multiple card slots without occupying external USB ports.