1. Using high-quality electronic components and precise craftsmanship to precision, durability, and long service life. 2. Constant temperature of 10MHz, ultra-low phase noise, low noise, portable and reliable. 3. This product adopts a 10MHz frequency standard and is provided by an OCXO crystal oscillator. 4.10M OCXO board, high stability, sine wave output. 5. Equipped with SMA external screw internal hole interface, it can be widely used in communication base stations, shortwave radios, frequency meters, signal source testing and measurement equipment and other fields. Name: 10M benchmark board Output: 10MHz/13DBM Default frequency accuracy: 10M 0.05Hz Interface: SMA DC interface: 5.5/2.1 Colour:Green Material:ABS Package Contents: 1 x Crystal OCXO Board (Random words , don't accept the specified) 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.