We are going to assemble a GPU server (tower model). But I see 2 different K10 kepler GPU cards, AOC-GPU-NVK10-LR and AOC-GPU-NVK10-RL. Which one do I need? And what is the difference?
You need AOC-GPU-NVK10-RL for tower chassis. The difference is the airflow (right to left or left to right). For some 1U systems the airflow direction is different because the card can be placed in a other angles in the chassis.