Product Detail New ASUS North Bridge Chipset Heatsink & Fan Known Compatible Asus Motherboard: K8N4-E Deluxe, K8N4-E SE, A8N-E, A8N-SLI, A8N-SLI SE, A8N-SLI Deluxe Also good for NB settings with matching mounting pin distance 2 1/8" (~54mm) center to center of mounting pins, 3-Pin header with approximately 2 3/4" (70mm) power line Fan Dimension (LxWxH) is approximately 1 3/4" (45mm) x 1 3/4" (45mm) x 1/2" (13mm) . The "ASUS A8N5X K8N4-E SE/Deluxe A8N-E/SLI/SLI SE North Bridge Chipset Cooler Fan" is best product for you. We recommended ASUS A8N5X K8N4-E SE/Deluxe A8N-E/SLI/SLI SE North Bridge Chipset Cooler Fan