This product is either discontinued or we cannot get that from suppliers.
HP 2530-48 Switch J9781A, Network Ports-48, Expansion Slots-2, Slots-2, Twisted Pair, Fast Ethernet, Gigabit Ethernet, Network 10/100Base-TX, 10/100/1000Base-T, Network (RJ-45) Ports-48.
The HP 2530 Switches Series provides security, reliability, and ease of use for enterprise edge, branch office, and SMB deployments. Fully managed switches deliver full Layer 2 capabilities.