The S5735-L8T4S-A1 has similar indicators to those on the S5735-L24P4X-A1 except that the S5735-L8T4S-A1 does not have USB and PoE mode indicators. For details, see the S5735-L24P4X-A1. Item Details Description S5735-L8T4S-A1 (8*10/100/1000BASE-T ports, 4*GE SFP ports, AC power) Part Number 98011284 Model S5735-L8T4S-A1 First supported version V200R020C10 Remarks Some models cannot be downgraded due to component upgrade. Therefore, you are advised to run the display system-software information command (supported in V200R021C00 and later versions) to check the software versions supported by the device before performing a downgrade.