Huawei S5731 Series Switch Overview
S5731-S supports 24-port or 48-port 1000BASE-T/X, 4-port 10GE uplink, fixed AC or DC power.
S5731-H is an advanced version of this series with higher forwarding performance, an expansion card slot available, and supports 1+1 power backup.
S5731S-S and S5731S-H are the channel distribution series of the above series, and the performance is very close.
Huawei S5731 Series Official Documents:
Huawei S5731-S Switch Datasheet
Huawei S5731-H Switch Datasheet
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S5731 Series
PAC150S12-R
Huawei PAC150S12-R supports 150 W AC Power Module apply to S5731 series switch
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S5731 Series
PAC600S12-CB
PAC600S12-CB supports 600W AC Power Module apply to S5731/S6730/CE6800 series switches
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S5731 Series
PDC180S12-CR
Huawei PDC180S12-CR supports 180 W DC Power Module apply to S5731 series switch