Product Description: , Model: D12BM-12D Factor: Black Size: 120 × 120 × 38mm (TD) Voltage: DC12V Speed: 4700 ± 10% rpm Wiring: Four-wire red positive pole, black negative pole, blue speed measurement, yellow PWM speed regulation Line length: 30CM Connector: 4P main version (can be replaced if needed) Bearing type: precision double ball bearing Life span: 50000 hours (25°C, 45 - 85% RH) Highly cavity metal + double ball bearings, suitable for high temperature dissipation or server. Package List:1*D12BM-12D 12V 2.3A Cooling FanNotes:1. Due to various factors such as display brightness and light brightness, the actual color of the product may be slightly different from the picture on website.2. Please allow slight deviation between the data and manual measurement.