This product is either discontinued or we cannot get that from suppliers.
HP 658250-B21 Ethernet Blade, Switch - 8 ports - managed - stackable, Plug-in module, Gigabit Ethernet, Port 4 x 10/100/1000 + 4 x Gigabit SFP / 10 Gigabit SFP+, Capacity IGMP groups: 1024, RAM 1 GB, Flash Memory 256 MB, Interfaces 4 x 1000Base-T RJ-45, 4 x SFP+, 1 x RJ-45 management, 16 x Ethernet 1000 - backplane.
The HPE 6125G/XG Ethernet Blade Switch brings the rich features of the HPE Comware network operating system, that delivers a common level of features, service and security levels from edge to core.