is Promise TX4302 supported?

Hi folks,
I'm considering buying a four-channel SATA PCI controller marked as Promise TX-4302 (two internal SATA links, two eSATA, independent on each other). According to the product page at Promise [1], Linux is missing from the list of supported operating systems, although Google suggests that online stores include Linux in the list of supported OSes.

I wasn't able to find this chip mentioned at the list of supported chipsets [2]. There's a similarly looking TX-4, but I don't like the idea of buying a nice room decoration instead of a working device.

I wasn't able to find out any reference to AHCI in the specs, either.

I would appreciate if you CC me on your replies as I'm not subscribed to this list, but if it's considered impolite here, I can surely subscribe :).

[1]
http://www.promise.com/product/product_detail_eng.asp?segment=undefined&product_id=168
[2] http://linux-ata.org/driver-status.html

Thanks in advance,
-jkt

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