PartsCollecion Genuine NMB 3106KL-04W-B59 for Cisco 3725 Fan (80x80x15 MM) GUARANTEED NMB FAN 3106KL-04W-B59 B50 BRAND NEW NMB BRAND 3106KL-04W-B59 WILL BE SHIPPED NOT OEM REPLACEMENT (AFTER MARKET FAN)