1. Intelligent Temperature Control, Cooling Artifact, for Slim Digital Version/Optical Drive Version Host Radiator. Strong Compatibility, Supports for slim Digital Version And Optical Drive Version. 2. It Does Not Get Hot When Playing For A Long Time, And It Can Truly Cool Down. It Can Continuously Cool Down And Play For A Long Time, Keeping The Host In Good Operating Condition At All Times And Playing Games Without Fever. 3. High Speed And Large Air Volume, Rapid Heat Dissipation, Smooth Gaming, 9 Aerodynamic Bionic Blades, High Speed Of 160010%Rpm, Continuously Providing High Wind Pressure And Large Air Volume. 4. The Fan Is Designed With Automatic And Manual Transmission Functions. When The Automatic Transmission Mode Is Turned On, The Fan Will Automatically Start Working When The Temperature Is Higher Than 40, And The Fan Will Automatically Stop Working When The Temperature Is Lower Than 40. 5. Attention: 1: Automatic: It Will Automatically Turn On And Off The Machine And Adjust The Fan Speed According To The Operating Temperature Of The Host Machine. 2: Gears 1, 2, And 3: Manual Gear, You Need To Manually Adjust The Speed Or Turn Off The Fan. The picture is a high-definition rendering, Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use. Installation Notes: 1. You Need To Remove The Casing On The Upper Left Corner Of The for Slim Host, Then Install The Product And Fasten It. The Installation Is The Same As The for Original Casing. 2. After Installing This Product, Plug And Pull The Usb2.0 Power Cord Into The Usb Data Interface On The Back Of The for , And It Is Ready To Use. Function Description: Power Button: 1. After Power On, It Will Be In The Default Power-On State; 2. Press The Power Button To Turn Off The Fan; 3. Press The Power Button Again To Turn On The Fan. Fan Button (Circulation Adjustment): 1. After Power On, The Default Automatic Gear Is "Auto" And The Auto Indicator Light Is On. 2. Press The Fan Button, The Fan Is In 1st Gear, And The 1st Gear Indicator Light Is On. 3. Press The Fan Button Again, The Fan Is In 2nd Gear, And The 2nd Gear Indicator Light Is On. 4. Press The Fan Button Again, The Fan Is In 3rd Gear, And The 3rd Gear Indicator Light Is On. 5. Press The Fan Button Again, The Fan Is In Auto Mode, And The Auto Mode Indicator Light Is On. Indicator Status (Fan Speed Indicator): Auto Light: Automatic Transmission. 1 Light: Slow Gear. 2 Lights: Mid-Range. 3 Lights: Fast Gear. Colour:As Shown Material:ABS Package Contents: 1 * Host Cooling Fan (With Connecting Cable) 1 * Instructions In Chinese And English Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.