I recently was given these two GPUs and have no idea what kind they are. A quick google search of things printed on the PCB suggest a Nvidia Quadro of some sort. The cards appear to have a SLI bridge included, is that what it is? Would these two cards off better performance than my current crappy overclocked Radeon R7 240.
Images here: https://imgur.com/a/NAEGH
Images here: https://imgur.com/a/NAEGH