MCHOSE K99 V3、K99 V2、K 99V1 User Manual

1. Before You Start

This manual covers MCHOSE K99 V3, K99 V2, and the original MCHOSE K99, referred to here as K99 (Original / V1) for easier comparison.

Before setup, make sure the keyboard is charged, the included receiver is available if you plan to use 2.4G mode, and the mode switch is set to the connection type you want to use.

2. Identify Your K99 Model

3. Product Overview

K99 V2 Physical Controls

K99 V3 Physical Highlights

K99 V3 adds a dedicated multimedia knob, a Nano 2.4G receiver storage compartment, independent key backlighting and surround/ambient lighting, and model-specific status indicators. The supplied V3 documentation lists a 1.6m data cable and a low-front-height design of approximately 19mm.

Shared K99 Design Characteristics

Across the K99 family, the 98% layout keeps a dedicated number pad while reducing the overall width compared with a traditional full-size keyboard. The mechanical versions use a gasket-oriented structure and hot-swappable switch sockets, allowing compatible mechanical switches to be changed without soldering.

The original K99 and K99 V2 product materials emphasize multi-layer internal sound treatment. K99 V3 continues the same family direction with a six-layer internal acoustic structure and a choice of PC or FR4 plate on supported configurations. These structural parts influence typing feel and sound but do not change the basic connection or shortcut workflow.

Original K99 Switch & Keycap Options

The current official original-K99 product page lists KTT Hyacinth and Kailh Icy Creamsicle switch configurations. It also lists dual-shot PBT keycaps, with MDA-profile or side-engraved Cherry-height options depending on the product configuration. The original K99 supports compatible 3-pin and 5-pin mechanical switches through its hot-swappable sockets.

K99 V3 Plate Options

K99 V3 source material lists PC and FR4 plate variants. PC is the more flexible option, while FR4 is stiffer. The plate is part of the keyboard's internal typing structure, so feel and acoustic character can vary between versions even when the switch type is the same.

4. Connection Methods

USB Wired Connection — All K99 Models

1. Set the mode switch to OFF / the middle wired position.
2. Connect the USB-C end of the cable to the keyboard.
3. Connect the other end directly to your computer when possible.
4. Wait for the keyboard to be recognized. No wireless pairing is required.

2.4G Wireless Connection — K99 V3

1. Remove the included receiver from its storage compartment.
2. Insert the receiver into your computer.
3. Set the mode switch to 2.4G.
4. Wait for the keyboard to connect automatically.

Manual 2.4G Pairing — K99 V3

1. Disconnect the receiver from the computer.
2. Set the keyboard to 2.4G.
3. Hold Fn + ~ for approximately 3 seconds until the pairing indicator flashes rapidly.
4. Insert the receiver into the computer while the keyboard is close to it.
5. Wait for the indicator to confirm that pairing is complete.

2.4G Wireless Connection — K99 V2

1. Set the mode switch to 2.4G.
2. Remove the receiver from the storage slot.
3. Insert it into your computer. The keyboard should connect automatically.

Manual 2.4G Pairing — K99 V2

If automatic connection does not complete, hold Fn + ~ for approximately 3 seconds until the indicator flashes rapidly, then reconnect the receiver. A successful pairing is confirmed by the indicator.

2.4G Wireless Connection — K99 (Original / V1)

1. Set the keyboard to 2.4G mode.
2. Hold Fn + ` until the status indicator flashes rapidly.
3. Insert the original receiver into your computer.
4. Wait for the keyboard to connect.

BT Connection — K99 V3

1. Set the mode switch to B.
2. Choose a BT channel: Fn + 1, Fn + 2, or Fn + 3.
3. Hold the selected combination until its indicator flashes rapidly. Depending on firmware/printed materials, pairing may begin after approximately 3–5 seconds.
4. Open the host device's BT settings.
5. Select MCHOSE K99 V3 and complete pairing.

BT Connection — K99 V2

1. Set the mode switch to B.
2. Hold Fn + 1, Fn + 2, or Fn + 3 until the selected channel flashes rapidly.
3. Open the host device's BT settings.
4. Select the corresponding MCHOSE K99 V2 device and complete pairing.

Some K99 V2 source materials show both BT 3.0 and BT 5.0 device entries. When the host supports BT 5.0, use the BT 5.0 option.

BT Connection — K99 (Original / V1)

1. Set the keyboard to BT.
2. Hold Fn + 1 until the channel indicator flashes.
3. From your device's BT list, select MCHOSE K99 5.0 or MCHOSE K99 3.0, depending on the available host connection.
4. Use Fn + 2 or Fn + 3 in the same way to pair additional devices.

Connection Best Practices

• Use the receiver that was supplied with the keyboard. A receiver from another product or another keyboard may not be paired to your unit.
• For 2.4G, place the receiver where it is not directly blocked by a metal computer chassis or surrounded by multiple high-bandwidth USB devices.
• When troubleshooting BT, remove the old pairing entry before placing the selected K99 BT channel back into pairing mode.
• When switching between BT channels, short-press the channel shortcut after the device has already been paired; hold the shortcut only when you want to enter pairing mode.
• For firmware updates and the most predictable M HUB connection, use USB wired mode unless the specific update workflow explicitly supports 2.4G.

What the Mode Switch Does

The physical mode switch determines which connection system is active. On K99 V2/V3, B activates BT, OFF is the wired position, and 2.4G activates the receiver connection. The label OFF refers to the wireless radio position; the keyboard remains usable by USB cable when connected.

5. BT Multi-Device Switching

K99 V3, K99 V2, and the original K99 can store multiple BT channel pairings. After a device has been paired, short-press the corresponding channel shortcut to switch to it.

The keyboard stores pairing information for quick switching; it does not actively control all paired devices at the same time.

6. Windows & macOS Modes

In macOS mode on K99 V2/V3, the key positions are adapted so the Win key functions as Command and the Alt key functions as Option. If Win and Alt appear swapped on Windows, switch the keyboard back to Windows mode.

7. Function Row Shortcuts

K99 V2 — Windows Mode

K99 V2 — macOS Mode

In macOS mode, F1–F12 provide supported multimedia/system functions with a single press. Hold Fn with the corresponding F-key when you need the standard F1–F12 key value.

K99 (Original / V1) — Windows Mode

The original K99 uses the same core Windows media shortcut pattern: Fn + F1/F2 for screen brightness, Fn + F3 for window switching, Fn + F4 for Explorer, Fn + F7–F9 for media navigation, and Fn + F10–F12 for mute/volume.

8. General Keyboard Shortcuts

K99 V3

K99 V2

K99 (Original / V1)

9. Lighting Controls

K99 V3 — Key Backlight

The supplied K99 V3 manual lists the following key-backlight shortcuts. Shortcut behavior can vary by firmware or production version, so use the function card included with your keyboard if your unit behaves differently.

K99 V3 — Surround / Ambient Lighting

K99 V3 provides independent key backlighting and ambient/surround lighting. Turning off one lighting zone may not turn off the other. Custom lighting and additional color controls are available through M HUB where supported.

K99 V2 — Key Backlight

The K99 V2 source manual lists 16 backlight selections, including static, breathing, rainbow, reactive/ripple/animated effects, custom lighting, and backlight off.

K99 V2 — Side Lighting

K99 V2 — Ambient Light / Status Bar

When the K99 V2 ambient bar is in battery-display mode, its color and brightness are controlled by battery status and cannot be manually adjusted.

K99 (Original / V1) — Lighting

K99 V2 Backlight Effect Categories

The supplied K99 V2 manual presents 16 selectable positions in the backlight cycle. The translated names vary by source, but the documented set includes static lighting, breathing, rainbow-style effects, reactive lighting, ripple/wave effects, animated patterns, a custom mode, and an off position. Custom mode requires M HUB.

K99 V3 Backlight Effect Count

The supplied K99 V3 troubleshooting guide lists 24 backlight selections, including custom lighting and the backlight-off selection. Because the V3 uses independent lighting zones, the main key backlight and ambient/surround lighting can display different effects at the same time.

Custom Lighting

When a built-in shortcut does not provide the exact color or effect you want, use M HUB to configure the supported custom mode. Some animated effects use predefined color patterns and therefore do not expose every color control. This is expected behavior for those effects.

10. Indicators & Status Lights

K99 V3 Wireless Channel Indicator

On K99 V3, hold Fn to view the current wireless channel indication.

K99 V2 Battery / Ambient Light Bar

In 2.4G or BT mode, the ambient light bar can be switched to battery-status mode. In wired mode, it automatically changes to a charging-status effect.

Caps Lock / Num Lock

Indicator behavior can vary by operating system. In macOS, the numeric keypad remains usable even though Num Lock behavior and the Num indicator may differ from Windows.

11. K99 V3 Multimedia Knob

Each rotary step adjusts system volume by approximately 2% in the supplied source documentation. The knob can also wake the keyboard from sleep. Its press action can be reassigned to a supported function in M HUB; the rotary volume function remains dedicated to volume control.

If you feel the tactile click but mute does not activate, press the knob fully downward rather than pressing from the side.

12. Battery & Charging

Actual battery life varies with brightness, lighting effects, polling rate, wireless conditions, sleep settings, battery condition, and usage.

K99 V3 Battery Check & Low-Battery Warning

• In wireless mode, press Fn + B to check remaining battery status.
• M HUB may show an estimated battery level in supported modes.
• At approximately 5% remaining battery, the status indicator may flash red and lighting may turn off to conserve power.

K99 V2 Battery Status

• Use Fn + Home to switch the ambient light bar to battery-display mode.
• In 2.4G mode, M HUB can show an estimated remaining battery level.
• In BT mode, the host operating system may show an accessory battery estimate.

Battery-Life Test Conditions

The runtime values in the supplied materials are reference measurements rather than guaranteed operating times. Lighting brightness, effect type, polling rate, wireless conditions, sleep interval, charging history, and the age of the battery can change the result. For longest wireless runtime, reduce lighting brightness or turn lighting off and use an appropriate sleep setting.

Using the Keyboard While Charging

K99 V2 and K99 V3 can be used by USB while charging. Charging may take longer when the keyboard is actively being used, especially with lighting enabled. If the battery is deeply discharged, allow the keyboard to charge for a period before troubleshooting wireless connection behavior.

13. Sleep & Wake

K99 V2 and K99 V3 provide wireless power-saving sleep settings through M HUB. Available values can vary with firmware and M HUB version. The supplied troubleshooting materials list approximately 30 seconds to 20 minutes, with an option to disable automatic sleep. Some legacy driver screens may label the disabled state as Never.

• Sleep settings apply to wireless modes.
• Wired mode does not use the same wireless power-saving sleep behavior.
• Press a key to wake the keyboard. On K99 V3, the knob can also wake the keyboard.

14. Keycaps, Switches & Hot-Swap

Removing a Keycap

1. Disconnect or turn off the keyboard.
2. Place the included keycap puller evenly around the keycap.
3. Pull upward slowly and evenly.
4. For stabilized keys such as Space, Enter, and Shift, lift carefully and avoid pulling sharply from one side.

Removing a Switch

1. Remove the keycap first.
2. Position the switch puller around the switch retaining tabs.
3. Squeeze gently.
4. Pull upward in a controlled, straight motion.

Mechanical-keyboard sound can vary naturally by key position, keycap size, switch characteristics, stabilizers, internal acoustic materials, and typing force. Larger stabilized keys can sound different from standard letter keys.

Switch Installation Check

1. Inspect the replacement switch pins before installation.
2. If a pin is bent, straighten it carefully before inserting the switch.
3. Align the switch with the hot-swap socket and press straight down with even pressure.
4. Reinstall the keycap and test the key in the MCHOSE Keyboard Test page.

Large Stabilized Keys

Space, Enter, Shift, and other larger keys use stabilizers. Their feel and sound can differ from standard single-unit keys. When removing or reinstalling a large keycap, keep it level so unnecessary sideways force is not applied to the stabilizer.

15. Specifications

K99 V3 Additional Source-Listed Details

• South/lower-position RGB lighting with three LEDs under the spacebar in the supplied manual.
• Approximately 16 million-color ARGB lighting.
• Aluminum-alloy / PVD decorative counterweight options depending on configuration.
• PC or FR4 plate depending on version.
• Full-key hot-swap and full-key anti-ghosting / N-key rollover.
• Nano receiver storage compartment.
• Windows and macOS support.

K99 V2 Additional Source-Listed Details

• Independent main backlight, side-light strip, and ambient/status light bar.
• 99-key 98% layout.
• Hot-swappable mechanical design.
• Windows and macOS modes.
• Approximate switch-life reference of 50 million keystrokes, depending on switch configuration.

16. Package Contents

K99 V3

The supplied V3 manual lists: keyboard ×1, function card ×1, instruction manual/certificate ×1, switch puller ×1, spare switches ×2, dust cover ×1, and data cable ×1. Packaging can vary by market or production batch.

K99 (Original / V1)

The current official product page lists: K99 keyboard, user guide, USB-C cable, puller, two spare switches, and dust cover. Package contents can vary by market or bundle.

17. M HUB Access

MCHOSE M HUB is the official configuration platform for supported MCHOSE devices. Use it to access model-supported features such as key remapping, macros, lighting, polling rate, performance settings, onboard profiles, and firmware tools.

Open the official MCHOSE M HUB page

• K99 V3: use USB wired or 2.4G for M HUB configuration; BT configuration is not supported.
• K99 V2: use USB wired or 2.4G for M HUB configuration; BT configuration is not supported.
• K99 (Original / V1): the original official setup guide instructs users to connect by USB for software setup and firmware updates.

18. Cleaning & Daily Care

1. Disconnect or turn off the keyboard before cleaning.
2. Use a soft brush or air blower to remove loose dust and debris.
3. If deeper cleaning is needed, remove keycaps carefully.
4. Clean keycaps separately and allow them to dry completely before reinstalling.
5. Keep liquids away from switches, sockets, ports, and internal electronics.
6. Place the keyboard on a flat surface and make sure both adjustable feet are set evenly.

19. Still Need Help?

If your K99 still does not work as expected, contact MCHOSE Support and include your product model, connection mode, operating system, M HUB version, firmware version, a short description of the issue, and photos/video when the issue is visible.

Email: support@mchose.store

You can also use the official keyboard input test tool when checking key response: MCHOSE Keyboard Test.