The LNF-ISISC8_12A from Low Noise Factory is a Dual-Junction Isolator that operates from 8 to 12 GHz. It has an insertion loss of 0.2 dB, an isolation of 40 dB, and can handle up to 30 dBm of power. This isolator has been designed from the ground up to meet the strict requirements of ultra-low temperature physics research. The gold plated OFHC copper body ensures minimum loss and that this loss reaches the lowest possible temperature to minimize thermal noise. It requires a DC supply voltage of 50 V and is available in a slim coaxial module that measures 38.1 x 20.6 x 10.2 mm with SMA female connectors.