Both 2.5 Gb E ports are backwards compatible with 1 Gb E/ 100 Mb E speeds. Up to 5 Gbps transfer speeds can be achieved by using port trunking. Add extra functionality with PCIe cards, including 10 Gb E ports, SSD caching, extra USB (Universal Serial Bus) 3.2 Gen 2 ports, wireless networking, or Fibre Channel. Supports entry-level NVIDIA graphics cards for video processing or GPU-passthrough to VMs. Features two M.2 PCIe NVMe SSD slots for Qtier Technology & SSD Caching enable constant storage optimization. Host containerized applications & virtual machines with various operating systems. Features QTS operating system & supports switching to ZFS-based Qu TS hero for greater reliability. Featuring an AMD Ryzen™ V1000 series V1500B quad-core processor that delivers great system performance with up to quad-core / 8 threads & Turbo Core up to 2.2 GHz. The TS-673A features two 2.5 Gb E RJ45 ports & two PCIe Gen 3 slots for you to flexibly deploy 5 Gb E/10 Gb E networks. Two M.2 NVMe SSD slots for Qtier Technology & SSD Caching enable constant storage optimization. The TS-673A supports QTS & Qu TS hero, allowing users to flexibly switch operating system based on their requirements.