Product name: Compaq iPAQ H3800/3900 Serial HotSync Cable
Model: A08-01-339
Introduction
Used for hotsync.

Features
* Hotsync

Specifications
* Length: 1.3m
* G. W: 86g
* Packing: PE bag

Compatible with
HP iPAQ H5450/5550 (1-1080804-X-02)
Compaq iPAQ H3800/3900 (1-1080402-X-02)

Use Means
Simply connect one side of the Serial Hotsync Cable to the serial port of your computer, the other side to your PDA, so that you can hotsync between your computer and PDA.