Others say...

"Exactly what it says it is."
A SERIAL CABLE. Nothing more, nothing less. If you already have one, you don't need this. If you don't have a serial port. Don't buy this. Simple. Great for people with a Foretrex 101, which does not come with a cable.

Don't expect Garmin to make a USB cable, the Foretrex can't support it (the port is a simple serial port). You can always get a Serial to USB adapater and try that if you need to.

No point in trashing this cable because it isn't what you're looking for or you have one already.

"Foretrex cable with limited ability."
I have 2x Foretrex 201 units, where i have to share the data between them regularly. The units were shiped without any software, but i found EasyGPS (freeware) to work great with the units, and with keeping a back-up on the pc. I can now even download waypoints from the web into my Foretrex 201's. I have now upgraded to a new laptop, without a serial port, and i am dissipointed not to find a usb replacement cable from the manufacturer. The GPS units though, are working great.

"Cable fine for foretrex 101"
To correct the earlier comment, this cable can be useful in certain cases. I bought this cabel to use with my foretrex 101, which doesn't ship with a cable. It works fine, though make sure it is pushed all the way in. No "charging base" is needed to use this cable with the foretrex 101 since the foretrex uses AAA batteries.

"New technology needed for PC interface"
If the PC connection would be updated to USB (my computer does not even have a serial connection), they could even add the ability to use the USB power to recharge the Forerunner. That would be Really useful!

"Spare Parts"
This is nothing more than a replacement cable for the serial cable that is already included with the Garmin Forerunner 201. You will only need it if you lose your existing cable. However, for the price they really should have included the additional charger that actually connects the unit to this cable. With your forerunner and this cable alone, there is still absolutely nothing you can do unless you have the charging base (there are two cables that connect your Garmin to your computer).

That means that this product is only useful for people who have lost one of the cables, but still have the other. What's more, it's an outdated serial connection, which means very slow transfers. The least they could do was offer a USB connection if they're going to sell this separately.