I've been cooling custom PCs with everything from toothpaste to fully bespoke loops, and these are the coolest Prime Day deals I've found this year

Sometimes you just need a cheap, affordable, reliable 360mm AIO, and that is exactly what the Nautilus 360 is. Is it the best cooler out there? No, not really, Arctic's Liquid Cooler holds that title, but for what it's worth, its a plain, basic, wham-bam thankyou mam non-RGB (I know I'm in shock too) solution that just gets the job done, and at its lowest ever price of just $76 down from $110 on Amazon (cheaper than Arctic in fact).

Then there's the Phanteks Glacier One 360M25-LCD. Now I haven't technically tested this one specifically, but I have used practically every other Phanteks Glacier AIO out there, and then some, and I can safely report they're surprisingly reliable, quiet, and come with some of the minimal BS fans I've ever seen. They're just so simple to daisy-chain together, and there's no RGB nonsense, or hubs, or madness to deal with. The LCD version, though, comes with a 6-inch configurable LCD display that sits on top of the CPU block for a staggeringly cheap $110 at Newegg after rebate and a coupon code's slapped on (promo code: PHAF448)

Lastly, and because everything needs a curved OLED screen, Tryx's Panorama SE ARGB 360 is currently on sale for $252 down from $280 as well, courtesy of Newegg. Now, despite the moniker and the lower price tag, this is effectively a second generation of Tryx's initial curved OLED design, and it improves significantly on the initial design. So you can skip the OG 360 and opt for this one instead. The fans are better, you can rotate the screen, and it's a smaller CPU block. Tick, tick, tick.

You've got Sudokoo SK700V AM5. Now this is a brand new design, from a fledgling company straight out of Singapore. There's rumors suggesting this is actually a Thermalright design licensed out, but to be honest, it's seriously slick. You get a built-in digital display (it's not a fully controllable OLED), a single 120mm fan, and one of the most intricate fin layouts I've ever seen. It's super easy to install too, with a single USB cable for the display, but more importantly, the fan and the screen (combined into a single unit) slide in on a single rail, locking into place. Nice. I scored it 92% in a review (coming soon), at its full $90 price, needn't matter, reduced to $72 thanks to Amazon. One caveat, it's AMD only unless you buy an Intel bracket for a little extra (still a bug bear).

Lastly, it's a similarly themed design in many ways. Be Quiet!'s Dark Rock Elite 280W CPU cooler packs in two fans (again, both on rails) into a super clean footprint that lock into place beautifully, making it impressively easy to install. And yes, it's got RGB in the roof, because of course it does. But, it is only $67.90 now, thanks to a hefty 22% saving on Newegg.

Remarkably affordable, Cooler Master's Hyper 212 line has long been a staple for those on a budget looking for something with a bit more grunt than the stock coolers that come with both AMD and Intel's offerings, and the 212 Pro delivers some seriously impressive bang for the buck. Particularly as its had its price slashed all the way down to just $19.99 thanks to Amazon.

Lian Li's Uni FAN SL-Inf Wireless 120mm Black triple pack. What a name. These, though, I've used most recently in a pretty slick Phanteks Evolv X2 build, and after some fiddling, they're surprisingly easy to set up and configure. I mean the software's a little funky, and I'm not so sure I'm that sold on a giant USB dongle hanging out the back of my chassis for them, but there's no denying they look seriously clean, and reduced down from $75 to $65 on Amazon (particularly when they regularly retail for $90+) is a healthy saving when you need six to nine to kit out a rig.

If you're more cost-conscious and can't deal with the daisy-chaining nonsense, NZXT's F360 Core RGB line is currently on offer too, at a staggeringly low $30, down from around $70, in black or white editions. They're seriously clean, four screws to install, two cables out (one if you use a compatible fan controller), and done. Nice.

Then my wild card, the old Razer Laptop Cooling Pad. RGB? Check. Air-tight pressure chamber with a giant fan? Check. USB ports? Check. If all you want to do is hide away for the summer and pretend it's 2005 again, cranking out Molten Core runs in classic, this is your guy. Amazingly, Razer's knocked $50 off this thing, bringing it down to an astonishingly low $120.