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WS-C3750G-12S-S is a Cisco Catalyst 3750G-12S stackable multilayer switch in a 1 RU chassis. It has 12 SFP-based Gigabit Ethernet ports and a 32-Gbps high-speed stacking bus. The -S variant carries the IP Base feature set; the -E variants carry IP Services.
StackWise stacking runs at 32 Gbps and up to 9 units can be stacked. The switching fabric is 32 Gbps and the 3750G-12S forwards 17.8 Mpps. The stack forwarding rate is 38.7 Mpps for 64-byte packets.
The 3750G-12S has 128 MB of DRAM and 16 MB of flash, and can be configured for up to 12,000 MAC addresses and 20,000 unicast routes.
The power supply is rated at 120 W maximum, with 409 BTU/hour maximum total output. Measured consumption is 100 W at 100 percent throughput and 75 W at 5 percent throughput. AC input is 100-240 VAC at 0.6-1.2 A and 50-60 Hz, and the RPS input is +12 V at 13 A.
The chassis measures 1.73 x 17.5 x 12.8 in (4.4 x 44.5 x 32.6 cm), weighs 10.0 lb (4.6 kg) and has an MTBF of 215,000 hours.
| Part number | WS-C3750G-12S-S |
| Ports | 12 SFP-based Gigabit Ethernet |
| Form factor | 1 RU stackable |
| Feature set | IP Base |
| Stacking | StackWise, 32 Gbps, up to 9 units |
| Switching fabric | 32 Gbps |
| Forwarding rate | 17.8 Mpps |
| Memory | 128 MB DRAM, 16 MB flash |
| MAC addresses | up to 12,000 |
| Unicast routes | up to 20,000 |
| Power supply | 120 W maximum, 100-240 VAC |
| Dimensions | 1.73 x 17.5 x 12.8 in (4.4 x 44.5 x 32.6 cm) |
| Weight | 10.0 lb (4.6 kg) |