Cisco Catalyst 3548 switch- 48 ports 2 x GB Ports
The Catalyst 3500 series XL switches are workgroup Ethernet switches that supply Gigabit Ethernet and autosensing 10BaseT or 100BaseTX connections in individual switches and in clustered configurations. These switches---also referred to as 3500 XL switches---can be deployed as backbone switches aggregating 10/100 and Gigabit Ethernet traffic from other switches and hubs or in mixed configurations connecting hubs, switches, servers, and desktop computers or servers.
These is the version of the IOS:
Cisco Internetwork Operating System Software
IOS (tm) C3500XL Software (C3500XL-C3H2S-M), Version 12.0(5.3)WC(1), MAINTENANCE INTERI
IOS (tm) C3500XL Software (C3500XL-C3H2S-M), Version 12.0(5.3)WC(1), MAINTENANCE INTERIM S
OFTWARE
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Mon 30-Apr-01 07:51 by devgoyal
Image text-base: 0x00003000, data-base: 0x003331F4
System image file is "flash:c3500XL-c3h2s-mz.120-5.3.WC.1.bin"
cisco WS-C3548-XL (PowerPC403) processor (revision 0x01) with 16384K/1024K bytes
cisco WS-C3548-XL (PowerPC403) processor (revision 0x01) with 16384K/1024K bytes of memory
Processor is running Enterprise Edition Software
Cluster command switch capable
Cluster member switch capable
48 FastEthernet/IEEE 802.3 interface(s)
2 Gigabit Ethernet/IEEE 802.3 interface(s)
32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:06:53:1E:0A:40
Motherboard assembly number: 73-3903-08
Power supply part number: 34-0971-01
Motherboard serial number: FAB0523D4FQ
Power supply serial number: APQ050801JA
Model revision number: A0
Motherboard revision number: B0
Model number: WS-C3548-XL-EN
System serial number: FAB0524V0BS
Configuration register is 0xF | 
