Hi Priyavit,
As per the Juniper documentation you can use the following DAC SFPs in SRX4100 and SRX4200:
SRX-SFP-10GE-DAC-1M
SRX-SFP-10GE-DAC-3M
SRX4100:
https://apps.juniper.net/hct/product/#prd=SRX4100
SRX4200:
https://apps.juniper.net/hct/product/#prd=SRX4200
I hope this info is hepful.
