Synology RX418 4bay Expansion Unit (Diskless) & 10Gb Ethernet and M.2 Adapter Card E10M20-T1, RJ-45; 1 Port

Synology RX418 4bay Expansion Unit (Diskless)
Synology RX418 delivers an effortless solution for volume expansion and data backup for Synology 1U RackStation by adding 4 additional SATA drive bays on-the-fly. With its short-depth chassis design, RX418 ensures easy installation and deployment in 2-post racks and wall mount racks..

Synology 10Gb Ethernet and M.2 Adapter card E10M20-T1, RJ-45; 1 port
Synology E10M20-T1 helps you boost I/O performance and network bandwidth simultaneously using just one PCIe expansion slot on your Synology NAS.
Product 1: Plug-and-play design for seamless storage space upgrade
Product 1: Online volume expansion
Product 1: 12-inch depth to fit in 2-post racks and wall mount racks
Product 1: Energy-saving deep sleep mode
Product 2: M.2 SSD & 10GbE combo adapter card for performance acceleration
Product 2: Achieve Multi-Gig Ethernet transmission speeds of up to 10 Gbps
Product 2: Accelerate random I/O performance with the dual M.2 2280/22110 NVMe SSD slots
Product 2: Dedicated cache slots, free up primary drive bays for data storage