The Vertiv AVOCENT 210101 is a 10-wire RJ-45/Serial data transfer adapter that bridges an RJ-45 connection on one end to a 9-pin DB-9 RS-232 Serial Male connector on the other, enabling serial communication across compatible infrastructure. The single RJ-45 port pairs with a single DB-9 RS-232 Male port, making the adapter well suited for serial hub deployments including the Avocent ESP-8 MI Serial Hub. Packaged for retail, the 210101 carries the Vertiv AVOCENT brand and is offered under manufacturer part number 210101.