DB9ヌルモデムオス-メススリムラインデータ転送シリアルポートアダプター2個パック。

As described.

Llegó en tiempo y forma

Amazon were the only market place to sell these null modem adapters at a great price. Quality item and an essential for older/retro computers and serial devices. Two of them are included in the package.

I purchased these for connecting legacy equipment that requires a null modem configuration, and they worked exactly as expected. The slimline form factor is helpful in tight setups where multiple DB9 connectors sit close together. Fit is solid once connected, and there’s no noticeable play in the connection. One detail I especially appreciate is the mechanical design of the screw posts. Each jack screw is essentially a double-sided threaded post — one end secures the adapter to the equipment’s serial port, and the other end has internal threading to accept the thumbscrews from the connected cable or another adapter. This allows the connection to be mechanically fastened on both sides, which adds stability and prevents accidental loosening in lab, rack, or field environments. Signal transfer has been stable with no communication issues during use. For serial troubleshooting or legacy device connections, they’ve been reliable.

It works