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Mill-Max Hotswap Sockets

28 reviews

Mill-Max sockets are used to enable hotswap capabilities to standard PCBs. Available in both 7305-Gold and 0305-Tin to support varying case sizes.

Mill-Max Sockets Feature:

  • 50 included in each pack
  • 7305-0-15-15-47-27-10-0
    • Gold over Nickel
    • Length: 2.67mm
    • Outside Diameter: 1.96mm
    • Harder to handle but ideal for smaller builds
  • 3305-0-15-80-47-27-10-0
    • Tin over Nickel
    • Length: 2.67mm
    • Outside Diameter: 1.47mm
  • 3305-1-15-80-47-27-10-0
    • Tin over Nickel
    • Length: 3.30mm
    • Outside Diameter: 1.47mm
  • 0305-2-15-80-47-80-10-0
    • Tin over Nickel
    • Length 3.94mm
    • Outside Diameter: 1.47mm
    • Easier to handle but not compatible with smaller builds (see length)

Note: Please verify PCB compatibility with outside diameter of the socket.


  • 50 MillMax PCB Sockets
Customer Reviews
5.0 Based on 28 Reviews
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Filter Reviews:
Michael S.
United States United States

Order enough!

Each Cherry switch requires two of these sockets. I was refitting my 65% keyboard, which has 87 keys. I ordered 100 my first time around, not considering that each key will need two. As penitence for my sin of not wanting to do math, I had to order another 50 (with expedited shipping because I was so eager to finish). An observant reader will notice that: 87 keys * 2 > 150 sockets So even after two separate purchases, guess who still has 12 non-hotswap keys? This idiot.

Matt L.
United States United States

Much Easier than Expected

I was a little nervous going with 7305s over the 0305s since I dont have a ton of confidence in my soldering abilities, but honestly these were great and super easy. On a 19 key numpad project I only had a single one stick and only for the briefest second when I went to remove the keycaps, while at the same time holding firm even when the numpad is upside down. Will buy again for my next project.

Divinikey Mill-Max Hotswap Sockets ReviewDivinikey Mill-Max Hotswap Sockets ReviewDivinikey Mill-Max Hotswap Sockets Review
Jeremy H.
United States United States

Good sockets, but they take some skill to install

Really nice hot swap sockets. I installed them on a Monstargear XO V3 PCB and put in Aquaking switches. It all worked great but you need to have really good technique to solder them in correctly because they’re so short. Be sure to buy +10% because you’ll mess some of them up.

Divinikey Mill-Max Hotswap Sockets Review
Michael S.
United States United States


Operates as expected, since it's just a piece of metal with no moving parts. I opted for the 3305-1 Tin format. Other reviews mention it's a good compromise between low-profile/ease-of-use, but the tallest option would also have been fine by me--I'm not extremely picky. I hoped to install these in two devices: a Varmilo keyboard and a switch-tester purchased online. While practicing install on the latter, I started losing my mind because the mill-max sockets didn't fit and a quick internet search showed that I was the only one to ever experience this problem. It turns out this was a random problem/bug/feature of the switch tester, and NOT a problem with the sockets. The different between does/does not fit is almost imperceptible even with the socket in-hand, so I don't know how someone would tell prior to purchase whether they have that magical 1% board in which it does not fit. Pro tip: when installing, do not pinch the cylinder using tweezers. Instead, stab two sockets onto the ends of the tweezers and press them into the keyboard that way. It's even faster than the alternative method of stabbing the sockets onto a physical switch and installing it that way (though that's a good backup method in some cases). By the way, if one of these things goes flying off because you pinched it between tweezers, good luck finding it. Ask me how I know. (Having a strong magnet helps, but only if you know the general area it landed)

Melvin T.
United States United States