Hi dear!
The S5300SI and S5300EI switches use front subcards to provide 10GE ports. The LS5D00E2XX00, LS5D00E2XY00, and LS5D00E4XY01 front subcards provide 10GE ports on the S5300SI and S5300EI switches. The LS5D00E2XX00 front subcard uses XFP optical modules; the LS5D00E2XY00 and LS5D00E4XY01 front subcards use SFP+ optical modules.
The S5300SI and S5300EI switches support LS5D00E2XX00 front subcards since V100R003. A LS5D00E2XX00 front subcard can be used without a rear subcard or together with a rear subcard supported by the switches.
The S5300SI and S5300EI switches support the LS5D00E2XY00 and LS5D00E4XY01 front subcards since V100R005.
A LS5D00E2XY00 front subcard can be used without a rear subcard or together with a rear subcard supported by the switches.
When a LS5D00E4XY01 front subcard is used together with an ES5D00ETPB00 extended rear subcard of which the PCB version is VER.C, all the four ports on the LS5D00E4XY01 front subcard can be used. If a LS5D00E4XY01 front subcard is used without an ES5D00ETPB00 extended rear subcard or used together with a stack rear subcard, only the first and third ports on the front subcard can be used. The two ports are displayed as XGigabitEthernet */1/1 and XGigabitEthernet */1/2 in command lines.
Hope it helps!