S5720-52X-LI-AC best price at Huawei authorized parter Telecomate.com
S5720-52X-LI-AC Price - Huawei S5700 Series Switches
S5720-52X-LI-48S-AC Huawei S5720-52X-LI-48S-AC (48*GE SFP ports, 2 of which are 10/100/1000BASE-T + SFP combo ports, 4*10GE SFP+ ports, AC power supply)