The SeaLINK+16/232.RJ is designed for scalable serial communication over USB, offering sixteen RS-232 ports via compact RJ45 connectors. Built for industrial and server-room use, this adapter fits into a 1U rackmount space while supporting daisy-chaining through two USB downstream ports — a unique feature that boosts flexibility for multi-device deployments. Its onboard state-machine architecture ensures low host CPU usage even during simultaneous multi-port operation. Compatible with both Windows and Linux environments, this plug-and-play device is powered through USB and supports standard baud rates up to 115.2K bps. Ideal for applications in manufacturing, testing, retail, and data acquisition, the 2161 combines reliability with high-density connectivity.