Further information for Hewlett Packard JL253A -
HP Switch 1000Mbit, 24xTP, 4xSFP/SFP+ slot, 2930F-24G-4SFP+,
* Order-related, cannot be canceled *,
24 RJ-45 autosensing 10/100/1000 ports
(IEEE 802.3 Type 10BASE-T, IEEE 802.3u
Type 100BASE- TX, IEEE 802.3ab
Type 1000BASE-T); Duplex: 10BASE-T/
100BASE-TX: half or full; 1000BASE-T: full only
4 SFP+ 1/10GbE ports; PHY-less