This is the switch.
It has an FPGA Programmable
The QFX5100-24Q-AA Application Acceleration switch speeds the performance of critical time-sensitive applications by processing them within the network fabric using the
QFX-PFA-4Q
Packet Flow Accelerator (PFA) expansion
320 Gbps fieldprogrammable gate array (FPGA)
1 million logical elements.
Ordering
QFX5100-24Q-AA-AFI 24 port QSFP+ redundant fans & power supplies, Back to Front AC
QFX5100-24Q-AA-AFO 24 port QSFP+ redundant fans & power supplies, Front to Back AC
PFA
QFX-PFA-4Q 4 QSFP+ Packet Flow Accelerator expansion Module for QFX5100-24Q-AA
Then add the Jcare.
Jcare will be two parts.
One for the QFX5100-24Q-AA
and the second is for the PFA4Q
The Datasheet mixes the 24Q with the 24Q-AA so pay attention
https://www.juniper.net/assets/us/en/local/pdf/datasheets/1000532-en.pdf
If you need more let me know
Saar