BG540122173 You can order them direct from Tenlog, or you can upgrade them with the Hictop Titan extruders which are lighter, but you'll need to adjust the e-steps if so

BG540122173 The firmware is based on Marlin (v1.0.0) so it works best with Marlin compatible gcode (so Pronterface is probably better than Repetier)

BG540122173 The one I ordered delivered from the CZ warehouse has removable drivers, but is not the latest motherboard as it lacks power interruption recovery capability and filament runout sensors. Honestly, the stepper drivers won't make that much difference to the noise as the extruder fans are the nosiest part, and being 24V are not really easily replaceable with quieter ones.

BG540122173 Bed max temp is 80C through the interface, though it can be made to go to 95C via gcode before the firmware safety cut-off. It's not insulated. Bed levelling may be possible, but the firmware is non-standard Marlin, so adapting may be challenging, and Tenlog do not provide pin-out schematics for the motherboard, so there may not be any connections for a BL-Touch type servo connection.