The UGREEN NASync DH4300 Plus Storage Hub is a 4-Bay external drive designed to accommodate 3.5" SATA HDD or 2.5" SATA SSD. With a diskless system, this storage hub offers flexibility in managing your data storage needs. The hub features multiple USB specifications including 1 x USB 3.2 Gen 1, 2 x USB-A, and 1 x USB-C, allowing for efficient data transfer and connectivity options. Compatible with various devices, the UGREEN NASync DH4300 Plus is a reliable and versatile storage solution for your home or office setup.