and high quality DB9 Solderless RS232 D-SUB Serial to 9pin Port Terminal Male Female Adapter Connector Breakout Board High quality joints, fine solder joints, resistance to plug, and good contact to high-quality, durability and a long life. The housing is designed with a folding buckle for easy assembly and disassembly without tools. All signal ports are clearly named and labeled on both sides of the board for quick wiring. Suitable for variety of pin connections required to use serial communications industrial control products. colour:Black Material:Metal + plastic size:46.5 x 34.5 x 21mm Package Contents: 4 x Male connector 4 x Female connector 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia