I purchased this new three years ago for use at work, but I never ended up using it. The box is not included, but the unit itself is in very good condition. This is the price for the main unit, two drive keys, and the power cable. HDD is not included. Please feel free to contact me if you have any questions. Thank you. 【High Expandability】 The 4-bay design allows for easy storage expansion and large capacity to meet your needs. 【Excellent Cooling Performance】 Equipped with two cooling fans, achieving efficient heat management. It maintains stable performance even during long hours of use. 【Convenient Connectivity】 Equipped with a USB 3.0 port, making it easy to connect to external devices. Data backup and transfer can also be done smoothly. - Brand: Synology - Model Number: DS918+ - Drive Bays: 4 bays - USB Ports: 1x USB 3.0 - Power Button: Yes - Cooling Fans: 2 - Security Lock: Yes Thank you for looking.