Rosewill Rackmountable Switch 24-Port 10/100/1000Mbps 24 x RJ45 8K Mac (RNSW-11001) All 24 ports support IEEE 802.3x flow control for Full Duplex mode and backpressure for half-duplex mode, ensuring the reliable data transmission Auto-Negotiation between 10/100/1000Mbps automatically sense the link speed of each device to optimize the performance RGS-1024 can be rackmounted with the standard 19 rack, giving you the flexibility to expand the existing network