JD370A I HPE 5500-48G SI Switch with 2 Interface SlotsPorts: 48 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) Media Type: Auto MDIX Duplex: 10BASE T 100BASE TX: half or full 1000BASE T: full only 4 dual personality ports; auto sensing 10 100 1000Base T or SFP 2 port expansion module slots 1 RJ 45 serial console port Supports a maximum of 48 autosensing 10 100 1000 ports Memory & Processor: 128 MB SDRAM, 16 MB flash; packet