Caption: Warm Front End Electronics ASIC boards. Four AwaXe_v3 ASICs bias and read the TESs and the SQUIDs of the X-IFU instrument. Sixteen buffers drive the feedback lines. This board will be part of the WFEE Demonstrator Model. The flexible part of the printed circuit board allows the integration of the micro-D connectors in the WFEE box.

Credit: D. Prele & the APC team.