Supporting up to twelve 3.5" HDDs & four 2.5" SSDs, the TS-1685 is a high-capacity, robust, & reliable business NAS powered by an advanced processor. Designed to optimize enterprise IT infrastructure, the TS-1685 comes with three PCIe slots that support 10 Gb E/40 Gb E NIC, PCIe NVMe SSD, graphics cards, & USB (Universal Serial Bus) 3.1 expansion cards. Incorporating security & scalability, the TS-1685 presents an ideal choice for a complete business-ready storage solution with cross-platform file sharing, comprehensive backup & disaster recovery, i SCSI & virtualization, & more business applications.