- Mar 17, 2017
Yeah, I cross-flashed 4 MCX354A-QCBT (10GbE/40GbIB) to MCX353A-FCBT (40GbE/56GbIB) and it worked great. Same card physically, just different firmware. It's super easy and pain-free.Yeah, I'm pretty sure it's just a Mellanox CX342A CX3. A fellow member on STH figured out how to put this all together in a thread somewhere. He even had instructions on making a one port into a two port and cross flashing with Mellanox firmware.
I'm pretty juiced about going with QLogic now, though. I haven't been happy with the driver support of the CX3s in ESXi 7. Feels like they've been neglected, definitely on the buggy side.
What OS/platform are you using your CX342a on?
Edit: Apparently trying to flash non-pro to pro could brick your CX3 re: ASIC disparity.