• 4 bidirectional channel
• works with any voltage level from 1.5V to 30V 
• Size: 27x22mm (PCB)
• connector spacing = 2.54mm (0.1 inch)
• needs very small space in standing position
• breadboard compatible for hobbyist

With this device, you can connect the arduino pro mini 5V to NRF24L01+ 2.4GHz Wireless Transceiver Module

Note:

I will not answer sms queries, Send sms first stating you are inquiring about this product and then  call if you have questions or pm me. No time wasters please!