They're not an 'original' ie) they're not Team Omega's product.
But they're not a clone iether.
They're what I refer to as a knockoff. That is, they use the name, of a popular chip to create credibility and to drive sales.
ie) For PS2, the Matrix Team made the Matrix Infinity. A few rogue cloners produced a cheapmod called the Matrix Infinity SE, which technically, isn't a clone, as it does not look anything like the original chip. However, its feature set is nearly identical - Region free DVD, media autodection etc. It has most of the same features as the original chip, but is cheaper, and is using the name to produce a sense of credibility.
There are tons of chips on the PS2 market like this, such as the
Magic3.1+ (a Magic 3.1 knockoff)
Apple 70k (Apple 7 knockoff)
Ripper IV
On the Xbox side,
Apple 2 Pro (Apple Pro knockoff)
DuoX3 (DuoX2 knockoff)
As we can see here, this product contains two 256k bioses, controlled by a switch. This would have the same effect as the DuoX2 and probably come preflashed with the same bioses ie) X2 for 1.0-1.5 and M81.6 for 1.6.
This one is on white PCB so may come w/ cromwell and flashbios respectively. These probably flash better than the DuoX2 clones, as flashbios supports the 020A but seems to lack compatability with the M49FL080A, which comes on the DuoX2 clones.
Let us know how this goes, if you try one of these.