InWin Classic Series C900 Power Supply

A number of years ago, Inwin decided to stop outsourcing power supplies and start building their own. We’ve seen a few of their offerings since, and they’ve been decent performers but nothing too special. Today’s review sample promises to change all that, featuring the likes of 80 Plus Platinum efficiency and 900 watts inside one of the most attractive packages I think I’ve ever seen. Folks, meet the Inwin C900.

PRODUCT: Classic Series C900
PROD LINK: InWin’s Current Offerings
PRICE: $189.99 @ NewEgg
Price is at the time of testing!

It’s been quite a while since we last looked at an Inwin power supply, has it not? In fact, I think the last one was clear back at the end of 2012. Since then, they’ve stayed pretty quiet when it comes to this here website, at least when it comes to power supplies. Back when they decided to stop bringing in units from FSP and start building their own, I wondered if Inwin would ever become a major player in the power supply business. After all, it’s taken even big companies time to grab a foothold and make a name for themselves. Even Seasonic and Super Flower started out kind of unremarkable, with both companies having to put in some serious effort to get to the place they’re at now.

It’s looking like Inwin wants to follow that same heading today. The other units from them I’ve seen have been decent little units, but not too remarkable. But today? 900 watts, 80 Plus Platinum. I can’t wait to test this one.

The box tells us many things about this unit. Here, they tell me that Inwin hasn’t quite got the hang of cabling these bigger units yet. We’re looking at the 900W model, which apparently comes with only four PCI-e cables and one CPU cable. Insufficient on both counts… I want to see six of one and two of the other. It could be, though, that the box is misprinted and we actually do get enough connectors. We’ll find out soon enough.

I like that Inwin hasn’t bowed to peer pressure and is using quad 12V topology, but I find myself thinking that 25A is a bit on the low side for those rails. 30-35A would make more sense, and would still be low enough to keep the unit from smoking a hard drive on a damaged SATA connector.

The box tells us some more things here. I see no mention of a semi-fanless mode, which isn’t a deal breaker for me, really. Japanese caps? Yes, please, though again there’s no mention as to how many of them are from the Japanese names. Seven-year warranty? We’ll take that, too. Sleek and sophisticated design? You let me be the judge of that, Inwin. You can just call me the Honorable Judge Wolfie T. Weirdbeard.

We open up the box to find a fancy full-color user guide. It is somewhat lacking in information, I don’t see any 12V rail assignments or max temp ratings in particular, but it’s better than nothing.

Aside from the manual, things look sparse so far. I assume that big box-shaped outline on the left is the power supply in a blanket, while the bag in the middle has all the cables and accessories.