2-Pack USB 5V to 12V 4 Pin Fan Speed Adapter USB to Fan Adapter

Boost Speed Control: Built-in 5-12V boost module boosts USB 5V input to 12V 0.4A, with a maximum output of 8W. Combined with a stepless speed control knob, it precisely controls fan speed, suitable for low-power 12V cooling needs. | Wide Compatibility:Supports computer fans and can connect to USB-powered devices such as game consoles, network equipment, and professional equipment. It can also be expanded into a fan hub to meet various cooling control needs. | High Efficiency and Durability: Uses 24AWG tinned copper wire, which is oxidation-resistant. The PVC outer sheath is flexible and wear-resistant. The 34cm (13.39-inch) cable allows for flexible routing and stable power and signal transmission. | Easy Operation: Integrated switch and speed control knob; plug and play, no driver required. Simply plug in the USB port and connect the fan for one-button start/stop and easy speed adjustment. Even beginners can quickly get started. | Two-piece set: 2 individually packaged pieces, each package measuring 18101.8cm (7.093.940.71 inches), easy to store and keep on hand, suitable for DIY computer assembly, equipment modification and other scenarios.