The Logitech MX Ecosystem Explained: Which Products Work Together?

Most people buy an MX Master mouse or MX Keys keyboard without realizing they’re stepping into a tightly integrated ecosystem. Once you understand how the pieces fit — the Logi Bolt receiver, Options+ software, and Flow — you can build a setup where one dongle drives everything and your cursor slides between computers like they’re the same machine.

Here’s the full breakdown of how the MX line works together, and which products to pair.

The Three Pillars of the MX Ecosystem

The ecosystem rests on three things: a shared USB receiver standard, a shared software layer, and a cross-device control feature. Buy MX products in isolation and you miss most of this. Buy them together and the experience compounds.

Logi Bolt: One Dongle, Six Devices

Logi Bolt is Logitech’s current USB receiver. It replaced the older Unifying receiver in 2021 for security reasons — Bolt uses Bluetooth Low Energy with Security Mode 1, Level 4 encryption, which is what enterprises require.

A single Logi Bolt receiver can pair with up to six compatible devices simultaneously. That means one USB-A port handles your keyboard, mouse, trackball, number pad, and two spares — no Bluetooth pairing dance every time your computer wakes up.

Not every MX product ships with a Bolt receiver, though. Some are Bluetooth-only to save cost and desk clutter.

Logi Options+: The Software Layer

Options+ is the app that unlocks what the hardware can actually do. Without it, an MX Master 3S is just a good mouse. With it, you get:

• Per-app button customization (different scroll behavior in Chrome vs. Figma)
• Smart Actions (multi-step macros triggered by one button)
• Flow setup (see below)
• Firmware updates
• Battery monitoring

If you skip Options+, you’re leaving about half the value on the table.

Flow: Cross-Computer Control

Flow is the feature that genuinely surprises people. Set up two computers on the same Wi-Fi network — Mac and Windows, for example — and your MX mouse cursor slides from one screen to the other as if they were a single extended desktop. Copy text on one machine, paste on the other. The keyboard follows the cursor automatically.

It works with any Flow-compatible MX mouse, and the MX Keys keyboards will hop along with it.

Which MX Products Use Logi Bolt?

This is where buyers get tripped up. Here’s the practical breakdown:

Ships with Logi Bolt Receiver

• MX Master 3S — the flagship mouse
• MX Keys S — full-size keyboard
• MX Anywhere 3S — portable mouse
• MX Mechanical Mini — mechanical keyboard
• MX Ergo Trackball — if you buy the newer “S” revision

Bluetooth-Only (No Receiver Included)

• MX Keys Mini — the 75% layout keyboard is Bluetooth-only to keep the profile compact

All the Bolt-equipped devices also support Bluetooth, so you can pair them to a phone or tablet without burning a Bolt slot. They remember up to three devices and switch with a button press.

Building a Coordinated MX Setup

If you’re starting from scratch, here’s how to think about it.

The Default Power Setup

Pair an MX Master 3S with an MX Keys S. Plug one Bolt receiver into your main computer. You now have full-size keyboard and flagship mouse on a single USB port, both running Options+ with Flow enabled. This is the setup most people should buy.

The Compact Setup

MX Keys Mini + MX Anywhere 3S. The keyboard is Bluetooth-only, so pair it directly to the computer and use the Bolt receiver for the mouse. Great for travel or small desks.

The Ergonomic Setup

MX Ergo Trackball + MX Keys S. If wrist pain is the reason you’re upgrading, the trackball eliminates arm movement entirely and pairs cleanly with the full keyboard.

The Mechanical Setup

MX Mechanical Mini + MX Master 3S. Tactile typing with the same software and Flow support as the rest of the ecosystem. One of the few mechanical keyboards that plays this nicely with macOS.

Multi-Computer Workflows

If you work across a personal laptop and a work machine, Flow is the killer feature. A few practical notes:

• Both computers need Options+ installed and signed into the same account
• Both need to be on the same local network
• The mouse handles the handoff; the keyboard follows
• You can disable clipboard sharing if your employer’s security policy requires it

Setup takes about three minutes and works surprisingly reliably. Once it’s running, switching between Mac and Windows stops feeling like a context switch.

What to Buy Together

If you’re buying a keyboard and mouse at the same time — which most people should, for ecosystem reasons — the simplest recommendation is the MX Master 3S paired with the MX Keys S. Both ship with Bolt receivers, both are first-class in Options+, and both fully support Flow.

If you want mechanical switches, swap the MX Keys S for the MX Mechanical Mini. If desk space is tight, go MX Keys Mini + MX Anywhere 3S.

The ecosystem is real, and it genuinely pays off. Just make sure you’re buying Bolt-compatible pieces if you want the one-dongle setup — that’s the single biggest thing buyers miss.