While I can’t tell you if the cards are legit, I can say be warned when someone advertises “ZFS TrueNAS Unraid”.
I highly recommend that you use PayPal or similar service to purchase anything off of ebay. Read the reviews, it looks like this seller has been here a while, which is a good sign. Many places on ebay resell old computer hardware, possibly specifically made for a specific computer manufacturer, such as Dell.
Let me ask you this question… Do you need the HBA or just want the HBA? If it is just a want, take your time to research HBAs out there. Maybe message someone here who has purchased a similar card and where they got it from. If it is an ebay reseller, maybe that would help you out.
Here is another option: 9305-i16
Lots of good seller ratings. And just an example.
It’s not urgent, just want to build another backup system, that said I am tempted to test my luck.
Yeah saw one of his videos where he showed a fake card. Was quiet informative.
Looks indeed more like a 9300 but the chip is different and misses the 8pin power.
Apparently many 9305 use the 3224 even if they only have 4 sas ports (2 solder points are free on those cards like in the example I linked)
That said I have found official broadcom docs where the 16I is listed with the 3216 chip but a different heatsink than the card in question. Maybe the ebay listings are just false if they list the 16I with the 3224 chipset.
Here is the 16I also listed with the 3224 instead of 3216 Broadcom 9305-16i Host Bus Adapter
Free spots on the PCB do not mean that there’s a 3224 under the heatsink (and that you’ll get 8 extra ports if you play with a soldering iron).
I would not trust each and every listing out there to be error-free…
For what it’s worth, I bought a Dell H310 and Lenovo 430-16i from the same seller. Both have been working for a few months. The H310 was advertised as “open box” but the pcb is noticeably warped.
Some of the seller’s listings ship from Kentucky instead of China and if you are in the US that may be preferable.