Unit is working. This unit has been tested but it is missing the caddy drives that go inside. Buyer will need to aquire the caddie slots to be fully functional. Comes with unit and power cable. Thank you

The Synology RX418 4-Bay 1U Rack Expansion Unit is a black internal desktop drive enclosure with four bays compatible with PC. It supports both HDD and SSD drive types, featuring a USB 3.0 interface for fast data transfer. With an eSATA interface and a sleek design, this expansion unit from Synology offers high performance and flexible storage options for users looking to expand their storage capacity. Its compact size makes it easy to integrate into existing setups, providing a reliable and efficient solution for storage needs.