MAKCU vs FERRUM: which aim device for DMA

An aim device lets your second computer move your mouse. It sits between your mouse and your main PC. Your mouse plugs into it, it plugs into your main PC, and your main PC sees one normal mouse. A second cable goes to your second computer, which sends it commands over a serial link (Windows calls it a COM port). Those moves get added on top of your own.

You don't need one. Without it your second computer can show you the game but can't move anything, so if you only want to see things, skip it. We sell two, and we recommend MAKCU.

The middle port is different on the two. If you switch from one to the other, check the layout before you plug in.

Why we recommend MAKCU

• It does the same job for a lot less.
  $25 against $160. Both pass your mouse through, take commands from your second computer, and are listed by Blurred.
• Anti-cheats are going after aim.
  FACEIT added Human Input Detection in August 2026. It looks at how you play, not what you play with, and flags input no human could make. Vanguard is going the same way. We think aimbots that don't move like a person will soon get caught in most popular games.
• The aim gets checked, not the box.
  MAKCU's developer says anti-cheats record your raw mouse movement at your mouse's polling rate and send every move to their servers to check. What gets people banned is aim that doesn't look human.
• AB curves make the aim look human, on the box.
  AB curves turn a move your software asks for into movement that looks like a person made it. MAKCU's developer says this has to happen on the aim device, because the software can't see your mouse's reports fast enough. The device splits one big jump into lots of small moves, so the server never sees a jump your mouse couldn't have made. He says AB curves are part of MAKCU's v4 firmware, and custom MAKCU firmwares already run them. ABCurves is open source.
• 8000 Hz and AB curves don't go together on FERRUM.
  FERRUM's one edge is 8000 Hz. MAKCU's developer says FERRUM doesn't have the RAM to run AB curves at 8000 Hz. So once aimbots need AB curves to stay undetected, FERRUM users would have to drop to 1000 Hz, and its biggest selling point is gone. 1000 Hz with AB curves is fine.
• The box itself is about as detectable either way.
  MAKCU's developer says every chip these boxes are built on has detection vectors, FERRUM's included. Those don't get you banned. At most they make a device look a bit odd, and a fake mouse, a cloned one or a mouse after a broken firmware update can look the same. He says nobody gets banned just for having one plugged in.
• Keyboards and wireless work too.
  MAKCU passes a keyboard through as well as a mouse, and a wireless one through its own USB receiver.

A lot of FERRUM's marketing says MAKCU is detected. Every box has its own vectors, FERRUM's too, so we don't see that as a reason to pay $135 more.

Where FERRUM fits

FERRUM's one edge is 8000 Hz. It reports up to 8000 times a second, one report every 125 microseconds, which only a high-speed USB device can do. That only matters if your mouse reports at 8000 Hz too. FERRUM can only pass on what your mouse sends, so a 1000 Hz mouse gives you 1000 Hz. Your main PC and the game also have to handle 8000 reports a second.

It's also KMBox B+ Pro compatible. Software written for a B+ Pro works with it as is, and it fits into existing B+ Pro wiring. If you're replacing a B+ Pro, FERRUM is the easy swap. Its latency is about 0.14 ms.

FERRUM is a good device and you can still buy it from us. Honestly, we only sell it because some people wouldn't give our shop a chance if we only sold MAKCU. We think MAKCU is the better buy.

MAKCU in detail

MAKCU is two ESP32-S3 chips on one board. One takes your mouse, and the other is what your main PC sees. The ESP32-S3's USB controller can only send one report per millisecond, so 1000 Hz is a hardware limit. No firmware update will change it.

MAKCU speaks its own protocol. Its API page lists MAKCU's own commands and doesn't mention KMBox B+ Pro compatibility, so check that your software supports MAKCU itself. MAKCU's information page lists firmware 3.9 for keyboards, so check there which firmware you need.

Common issues

• Neither has a standalone mode.
  Your mouse just passes straight through until software on your second computer drives it over the COM port.
• Your software has to support the device.
  Check the protocol in the table against your software's list of supported devices before you buy. Which software to get covers what we suggest.
• Use a USB port on the back of your main PC. Front and top ports go through a cable inside the case and can cause dropouts. They can work, but the back ports are more reliable.

Will my mouse work?

Most USB mice and keyboards work on both, wired or wireless with their own USB receiver. Bluetooth doesn't, because a Bluetooth mouse talks to your PC directly and never goes through the device. MAKCU's information page also says some gaming mice that need special drivers may not fully work. FERRUM takes one device at a time on its input port, and a USB hub there doesn't work. Whether a mouse and keyboard sharing one wireless receiver work on either: TBD. If you're not sure about yours, post the model on the support forum before you buy.

When yours arrives, MAKCU setup and FERRUM setup show you how to wire it up.