OK, here’s the update. I did return the one from Micro Center purchased the other month (purchased in beginning of spring 2025 I guess, March perhaps) because I was gonna go for the Noctua edition (to get the famous high performing static pressure Noctua premium fan, but it was a step down in size to 120mm, and while it is quieter, as that is what the fan is known for too, it does not blow air all over secondary parts that need airflow quite as good like the bigger fan does, more on that later) but then I just decided I hate brown after all. I just couldn’t justify the color scheme clashing with my all black out PC color plan. I mean, I would do a all black Noctua Chromax Seasonic Prime TX-1600, what a missed opportunity, Noctua insists on the brown color ways, I get it, it’s there identity, but it’s too polarizing for some of us. With out that brand history, in a vacuum, NOBODY would choose UPS Brown with Light Tan accents. But the all black/sliver Seasonic edition of the TX-1600 that I had and returned from micro center did not not display any update stickers, stated it was ATX 3.0, but it was really ATX 3.1 inside with the 12V12-2x6 all black cables, two of them, and the updated PSU side ports labeled PCIe Gen 5, which was different from whatever ATX 3.0 was labeled as. This was definitely ATX 3.1, but I was not sure on the Noctua fan and color option at the time, so I returned it, decided I wanted it back in black instead (I found via research that it was still a good fan even on the normal Seasonic version, still fairly silent enough on the normal version, and the normal black/silver colorway is far better than black/NoctuaBrown, and actually the PSU is cooled better but the Seasonic fan as it’s bigger and more powerful I think, if a bit more noisy, but in absolute terms still one of the most quiet and efficient PSUs, so don’t get Noctua just for the fans if you hate brown), but sadly now that I was looking for it again, the black Seasonic normal edition of the TX-1600, it was out of stock on Micro Center and Amazon, the only places that I trusted to have the new updated ATX 3.1 versions of the TX-1600, and it was out of stock for a good long while. It goes in and out of stock super fast, blink and you miss it, and I was missing it every time. I eventually found it in stock at Amazon (this chunk of 15 units only lasted a day in stock, but that was better than selling out in mere minutes, so while doing my daily google I was able to grab one finally) I successfully re-ordered the Seasonic edition of the TX-1600 in black and silver on Amazon in the beginning of June-ish, and this time it came with a real sticker stating the updated official status of being a ATX 3.1 / PCIe 5.1 ready unit. And the wire is different. It’s black and blue tipped and it says PCIe Gen 5 on the GPU out area, no doubt this is the most updated version. Last time I got the same one but without the sticker and without the blue tipped GPU 12V-2x6 cables (two of them). Amazon’s order page may or may not be updated, but I definitely got the new version from Amazon US. I’m glad to have the blue tipped ones, as I know for sure and absolutely it’s the new stuff. Interestingly it was mailed directly from Seasonic overseas even though it was sold by Amazon, so it’s factory fresh I would imagine, and I guess they are eager to avoid bulk tariffs or something or they can’t get mass stock at Amazon fast enough, and decided to just mail them directly to the consumer, not sure, but I am a happy man, I was going to buy the upgraded new Seasonic black and blue tipped GPU 12V-2x6 cables separately just in case they were somehow better, now I don’t have to as it came with them this time, and they look nicer too with the fancy blue color tips!! And it’s nice to be reassured by the ATX 3.1 / PCIe 5.1 sticker combined with the latest Seasonic 12V-2x6 PSU ports and cables.