This product is either discontinued or we cannot get that from suppliers.
HP Switch J9772A, Ethernet Switch, Network Ports-48, Expansion Slots-4, Twisted Pair, SFP Slots-4, Gigabit Ethernet, Network 10/100/1000Base-T, Rack-mountable, Desktop, Wall Mountable, DDR3 SDRAM, Flash Memory 128 MB, Input Voltage 110 V AC, 220 V AC, Standard Memory 128MB.
The 2530 Switch Series consists of four fully managed Layer 2 edge switches, delivering cost-effective, reliable, and secure connectivity for business networks. Designed for entry-level to midsize enterprise networks.