This product is either discontinued or we cannot get that from suppliers.
HP 1820-24g-poe+ (185w) J9983A, Network Ports-24, Port / Expansion Slot 24 x Gigabit Ethernet Network, 2 x Gigabit Ethernet Expansion Slot, Twisted Pair, Optical Fiber, Network 10/100/1000Base-T, 1000Base-X, Gray, MTBF 565195.20 Hour, Flash Memory 16MB, Input Voltage 120 V AC, 230 V AC, Standard 128 MB.
HPE OfficeConnect 1820 Series switches are basic Gigabit web managed "smart" Layer 2 switches supporting Virtual LANs (VLANs) and Link Aggregation, designed for small businesses looking for key features in an easy to administer the solution.