This product is either discontinued or we cannot get that from suppliers.
HP 2530-48g Switch J9775A, Network Ports-48, Expansion Slots-4, Twisted Pair, Gigabit Ethernet, Network 10/100/1000Base-T, Compatible 1U, Desktop, Rack-mountable, Wall Mountable, DDR3 SDRAM, Flash Memory 256 MB, Input Voltage 110 V AC, 220 V AC, Standard Memory 128 MB.
Aruba 2530 Series Gigabit Ethernet devices are enterprise class, fully managed, Layer 2 edge switches delivering cost effective, reliable, and secure connectivity for business networks.