This QNAP TS-409 Pro Network Attached Storage is a reliable and efficient storage solution for your network. It features a 4-bay design , allowing for ample space to store your important files and data. The unit is compatible with 3.5 inch HDDs and has a write speed of 4x. The gray desktop external HDD comes in good condition. With its brand reputation and form factor, it is a perfect fit for those in need of a robust storage solution. Item sold in working condition as is and as pictures.