Does what it's supposed to, a little stiff
What can I say about a cable - it works well and is well made. I would wish it were a bit more flexible, but no biggie for me.

Good quality = less headache
The SIIG serial cables might be a little more expensive than the generic cables but well worth it.
These are also not as flexabile as the cheaper cables, which I now learned the hard way that they should be.

The SIIG's have moved at least 20 terabytes these last few months and have yet to find errors after verification.

I now also use then to verify if the external HDD has any errors and utility work.

Do your self a favor and bypass lower quality cables.
I saved a few bucks and lost gigs of data due to coruption and problematic connection issues with lower quality generic cables.

Trouble shooting is imposible with bad cabels.

Works fine with a 1 TB Western Digital and Segates, as long as the external and SATA HDW has decent BIOS.

Works great with TiVo Series 3
Some other eSATA cables don't work with TiVo Series 3 machines because their connectors are too fat and stubby to fit the TiVo's recessed eSATA socket. This SIIG cable fits the TiVo perfectly - I used it to add a Seagate external drive to my Series 3 with no problems.

works perfectly with my tivo hd
I'm using this with an external Seagate DB35 drive, and it works perfectly - no pixelation or blocking.

Perfect
I bought this to connect my DirecTV HD received to a Seagate external SATA drive for more storage space. It works perfectly, and seems to be a quality made cable.