[S1720-10GW-2P] Huawei Switch 8 Ethernet 10/100/1000 PoE+ ports,2 Gig SFP,124W PoE AC 110/220V

Memory (RAM) 512 MB
Flash 512 MB in total, 240 MB available for customers
Mean time between failures (MTBF)23.8 years
Mean time to repair (MTTR) 2 hours
Power supply surge protection ±6 kV in differential mode,
±6 kV in common mode
Dimensions (H x W x D)Basic dimensions (excluding the parts protruding from the body):
43.6 mm x 250.0 mm x 180.0 mm (1.72 in. x 9.84 in. x 7.09 in.)
Maximum dimensions (the depth is the distance from ports on the front panel to
the parts protruding from the rear panel): 43.6 mm x 250.0 mm x 186.7 mm (1.72 in. x 9.84 in. x 7.35 in.)