Huawei S5700-28C-HI(24 Ethernet 10/100/1000 ports,with 1 interface slot,without power module)

Maximum power consumption (100% throughput, full speed of fans)	76.6 W
Operating temperature	-5C to +55C (23F to 131F), NOTE: The operating temperature of the switch is -5C to +50C (23F to 122F) when it uses SFP+ optical modules with 40 km or longer transmission distances.
Products Status	New
Rated voltage range	-48 V DC to -60 V DC, 100 V AC to 240 V AC, 50/60 Hz
Storage temperature	-40C to +70C (-40F to +158F)
Service port surge protection	2 kV in common mode
Power supply surge protection	Using AC power modules: 6 kV in differential mode, 6 kV in common mode, Using DC power modules: 1 kV in differential mode, 2 kV in common mode
PoE	Not supported
PN	2353630
Mean time to repair (MTTR)	2 years
Memory (RAM)	512 MB
Availability	> 0.99999
Noise under normal temperature (27C, sound power)	< 60 dB(A)
RPS	Not supported
Flash	64 MB
Relative humidity	5% to 95%, noncondensing
Operating altitude	AC power modules configured: 0-5000 m (0-16404 ft.), DC power modules configured: 0-2000 m (0-6562 ft.)
Model	S5700-28C-HI
Dimensions (H x W x D)	44.4 mm x 442.0 mm x 220.0 mm (1.75 in. x 17.4 in. x 8.7 in.)
Weight	Empty: 5 kg (11.02 lb), Fully configured: 6.5 kg (14.33 lb)
Certification	EMC certification, Safety certification, Manufacturing certification
Mean time between failures (MTBF)	28.7 years when a 4-port 10GE interface card is configured, 41.1 years when a 2-port 10GE interface card is configured, 42.9 years when a 4-port GE interface card is configured
Wide [mm]	442.0mm
Stack ports	Versions earlier than V200R003C00 do not support stack ports. Since V200R003C00, 10GE ports on the front card can be used as stack ports.
Warranty	1 Year
Brand	Huawei
Height [mm]	44.4 mm
Maximum voltage range	90 V AC to 264 V AC, 47 Hz to 63 Hz, -36 V DC to -72 V DC
Depth [mm]	220.0mm