HP 1810-24G Switch Format: Rackmount Uplink Ports: 2 Uplink Interface: SFP Primary Ports: 24 x RJ45 Primary Port Speed: 10/100/1000Mbps Uplink Speed: 10/100/1000 Mbps Buffer Memory: 128MB RAM, packet buffer size: 512KB, 8MB flash Dimensions: 12.99 x 6.81 x 1.73 (W x D x H)