3Dconnexion 3DX-700069 Universal Receiver

In addition, it features a compact design, so you can leave the receiver in the computer’s USB port during transport. Designed for 3Dconnexion Devices. Supports up to 5 Wireless Devices. MPN: ‎3DX-700069.

Mini SUNON 5V Fan 30x30x6 MM GM0503PEB1-8 Tach Sensor

Sunon GM0503PEB1-8Dimensions: 30x30x6 MMVoltage: DC 5VCurrent: 0.12AInput Power: 0.6WSpeed: 9500 RPMAir Flow: 4.9 CFMNoise: 28.5 dBABearing: BallFeature: Speed Sensor (Tachometer Output)Termination: 3-Pin / 3-Wire