Consider SDM3045X as it's fanless.
Also highly recommend you have a study here:
https://www.eevblog.com/forum/testgear/siglent-sdm3045x-enough-is-enough/
Is the fan noise that bad on the 3055 that it's a benefit to the 3045?
That thread is interesting, and hacking is fun, but is there a reason besides price and fan noise why you would opt for the 3045X instead?
SDM3055 = SDG2042X fan noise, not bad but you know, the less the better.
Read that thread again, SDM3045X = China version SDM3055X-E = 5.5 digits for the 4.5 digit cost....and no fan !
The only difference is product type, set by code and firmware.
Here we sell 3045X to repair shops where instead of HH DMM's each repair bench sports a bench meter too.
Either model has been very reliable and when you get the customer come back for further units it says something about their satisfaction with them.