The 40 pin dual inline package Propeller is well suited for students and hobbyists, because it is easy to solder and replace.
A 40pin wide DIP socket is usually used.

The Quad Flat Pack 44 pin Surface Mounted Propeller is more suitable for serious designers and mass productions.
Soldering with a sharp tip soldering iron by hand is possible with good practice.

This Propeller package has the smallest pcb footprint of all and is used where size is of utmost importance.
By using this chip is mass production, the cost of PCB real estate can be significantly reduced.

Propeller Proto Board is a low cost, high quality solution for permanent projects using the Propeller chip. To save the user some expense, the USB programming interface is not included on the Propeller Proto Board; we suggest you purchase a Prop Plug for programming your Propeller Proto Boards.

The Prop Plug and Prop Clip each provide a USB-to-serial port connection that is convenient for microcontroller programming and communication. These tiny devices are capable of asynchronous communication at up to 3 M baud with both 3.3-volt and 5.0-volt devices such as the Propeller and BASIC Stamp. The Prop Plug slips onto a 4-pin, 0.1" spaced header, allowing both PCB's and breadboards to provide in-circuit programming capability. Use the Prop Clip if programming with fewer components via a PCB edge connector is desired. Note: USB A to Mini B Retractable Cable is included.