RM500Q - Different between part numbers

IoT Modules 5G Module
1

Hi Quectel team,

we are looking for the differents between the two part numbers:

RM500QGLAA
RM500QGLAB

Is this the Rev version of the module.
I cant find anything in the dtasheet etc.

THX
Marcel

2

Dear Sir
RM500QGLAA means ES sample, and RM500QGLAB means CS sample.

image