Introduced: 15 March 2015
Broadcom Tomahawk. 7710 has PowerPC processor. 7712 has Intel processor. ONIE.
PowerPC is now (2017) dead. So Cumulus will no longer port to PowerPC switches.
But wait . . .
The 7712 has an Intel Atom processor. The newest version AS7716 has a Xeon processor. Supported software is less for the newer part. Best guess intro for the AS7716 is 31 January 2018. The new data sheet covers both the 7712 and 7716.
7712-32X: Cumulus® Linux® 3.1 and later versions Open Network Linux, the open-source, OCP reference NOS OpenSwitch open-source NOS PicOS. 2.7.1 and later version from Pica8 Inc OcNOS. 1.2 and later version from IP Infusion Big Monitoring Fabirc. 5.6.0 and later version from Big Switch Networks FlexSwitch software from SnapRoute Ixia Vision Edge OS. 4.7.3 and later