# Rii RK400 RGB Wired Gaming Keyboard and Mouse Set

The Rii RK400 is a wired gaming keyboard and mouse set with a UK-layout claim, rainbow keyboard lighting and an ergonomic wrist rest. Its fixed rainbow lighting and USB connection suit buyers seeking a straightforward illuminated setup, while compatibility should be checked for the intended console or computer.

- [Original product page](https://bargainpostbox.co.uk/product/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [View offer](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Rii
- Model: RK400
- Category: Computers > Keyboards & Mice > Keyboard & Mouse Sets
- Price: 20.98 GBP
- Previous price: 24.98 GBP
- Discount: 16%
- Price checked: 2026-11-12T15:05:18.611Z
- Rating: 4.4 / 5
- Reviews: 3304

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The keyboard has a claimed 105 keys and QWERTY layout.
- The listing describes rainbow lighting as one colour style, not individually selectable colours.
- The mouse has four listed cursor-speed settings: 1200, 1600, 2400 and 3200.
- The listing identifies a wrist rest and an ergonomic design.

## Pros

- Keyboard and mouse are presented together as a wired set, avoiding separate battery requirements.
- A wrist rest and four mouse cursor-speed settings are specified.
- The listing claims compatibility with gaming consoles, computers and televisions.

## Specifications

### Identity
- Brand: Rii
- Model: RK400
### Connectivity and controls
- Connection listed: Usb
- Keyboard layout: QWERTY
- Number of keys: 105
- Mouse movement detection: Optical
- Listed cursor-speed settings: 4 Adjustable cursor speed\(1200/1600/2400/3200 \)
### Power and battery
- Power configuration: Corded Electric
- Batteries required: No
### Lighting and design
- Keyboard backlighting: RGB
- Special features: Ergonomic, Wrist Rest
- Colour: Black
### Compatibility
- Compatible devices: Gaming Console, Personal Computer, Television
- Operating systems: Windows, macOS
- Minimum required operating system version: Windows Vista
- Hand orientation: Right

## Before you buy

- The listing says the keyboard has a single rainbow colour style and the mouse breathing light has no separate control. Console and operating-system compatibility varies by the listing's descriptions, so confirm support for your specific setup before buying.

## In the box

- Keyboard (Check selected pack): Presented as part of the set. No explicit package inventory is supplied.
- Mouse (Check selected pack): Presented as part of the set. No explicit package inventory is supplied.

## A good fit for

- Buyers looking for a wired keyboard-and-mouse starter set with rainbow lighting.
- People who want a wrist-rest design and selectable mouse cursor speed for general gaming or typing.

## Less suited to

- Buyers who need selectable keyboard lighting colours or independent control of the mouse breathing light.
- Buyers who need confirmed compatibility with a specific console, television or operating-system version without checking first.

## Customer feedback

Customer feedback describes the set as a useful starter option and reports positive impressions of its appearance, colours and value, including reports of use with PS4. Lighting and durability feedback is mixed, with some customers reporting that keyboard lights do not turn on and others saying the set failed within five weeks. For buyers drawn to its rainbow lighting and wired setup, those reports make lighting reliability and long-term durability worth weighing rather than assuming consistent performance.
- Positive themes: Customers report that it works well with PS4 and view it as a starter product.
- Positive themes: Customers praise its appearance and colours and report good value.
- Mixed feedback: Feedback on lighting is mixed, including reports that the keyboard lights do not turn on.
- Mixed feedback: Durability feedback is mixed, with some customers reporting failure within five weeks.

## Frequently asked questions

### Can the keyboard lighting change colour?
The listing describes one rainbow colour style. It does not claim that users can select different keyboard lighting colours.
### Can the mouse lighting be controlled separately?
The listing says the mouse breathing light has no single control.
### Is it compatible with PS4 or Xbox?
The title and feature text claim console compatibility, but the details do not confirm support for every console model or setup. Check compatibility for your intended device before buying.
### Does the set need batteries?
The listing says batteries are not required and describes the power configuration as corded electric.

## Alternative options

- [Gaming Keyboard and Mouse Set,Mafiti Rainbow Backlit Keyboard with Mechanical Feeling Breathing Light for Working or Gaming,UK Layout](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [DHKBL Large Print Backlit USB Keyboard and Wired Mouse Set, UK QWERTY \| 7 backlight colours, 3 brightness levels, number pad and wired optical mouse with 4 DPI settings. Mac/macOS is not supported](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [Rii Keyboard and Mouse Set,USB Wired Keyboard and Mouse Combo for PC Business Office Usage-1 Pack](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [Gaming Keyboard and Mouse and Mouse pad and Gaming Headset, Wired LED RGB Backlight Bundle for PC Gamers Users - 4 in 1 Gift Box Edition Hornet RX-250](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [Rii Wired keyboard and mouse, RK105 USB Keyboard and Mouse with Backlit\(White Green Blue\) for Office Home Business-Full Size Standard UK Layout](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [Rii RK108 Gaming Keyboard and Mouse Set,Wired LED Light Up Keyboard Mouse with 3 Colors Backlit \(Red/Purple/Blue\),Compatible with PC,Laptop,Windows,Gamer,Xbox one,PS4,PS5-UK Layout](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [STEALTH Gaming Light Up Keyboard - with 104 Keys, Compatible with PC](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [BAKTH Multiple Color Rainbow LED Backlit Mechanical Feeling USB Wired Gaming Keyboard and Mouse Combo for Working or Games](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [Rewurnth Gaming Keyboard and Mouse Set, UK Layout, RGB Backlit Wired Keyboard, Ergonomic 4-Color LED Gaming Mouse, Large Mousepad, USB Plug & Play for PC, Mac, PS4, Xbox](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [TECKNET RGB Gaming Keyboard UK Layout with 15-Zone RGB Illumination \| USB Wired Computer Keyboard, All-Metal Panel, 25 Anti-ghosting Keys, 105 Keys, IP32 Water&Dust Resistant, 90% Quiet Keyboards](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [DHKBL Backlit Keyboard - 7 Selectable LED Colours, Large Print, UK QWERTY \| 3 Brightness Levels, Black Full-Size USB Wired Keyboard with Number Pad & Adjustable Feet for Office, Home & Windows PC](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [Rii Gaming Keyboard,USB Wired Keyboard with Rainbow LED Backlit Mechanical Feeling for Working Gaming \(UK Layout\)](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)

## Add-ons

- [RedThunder K10 Wireless Gaming Keyboard and Mouse Combo, LED Backlit Rechargeable 3800mAh Battery, UK Layout Mechanical Feel](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)
- [SteelSeries Arctis Nova 1 - Gaming Headset for PC, PS5, PS4, Xbox - Hi-Fi Drivers - 360° Spatial Audio - AirWeave Memory Foam](https://bargainpostbox.co.uk/visit/rii-rk400-rgb-wired-gaming-keyboard-mouse-set)

## Images

![Rii RK400 RGB Wired Gaming Keyboard and Mouse Set — 1](https://bargainpostbox.co.uk/i/4ZUaExDPVGlCCtAxkISFOVLDOvBjMXVfYGuXhQ2bGU8jbxYPaaoS_LBSLGqrljamsLOp6A2jkUPUXeh7gnw-1q0YK2MZgUqdYNdIbberuU3qp4WLT5PBDWWd.jpg)

![Rii RK400 RGB Wired Gaming Keyboard and Mouse Set — 2](https://bargainpostbox.co.uk/i/1mDIEYcBEFL2jYcB5k8ABsKHVmwey0soCDf51youP3N8YCdf6RAj9HCaZG1L6Lycblfbc29AyS1f6ZZFhWyKdbDI-O1qtEJyCvgYTtcat_Er4YS013IatMqn.jpg)

![Rii RK400 RGB Wired Gaming Keyboard and Mouse Set — 3](https://bargainpostbox.co.uk/i/Vf9-aHmMT0vW3pZkd927gMCqf1s8ogjRViUUjtEIsbURXo33gonA3miJM5_NkpeY-BA6u-EQs3uSwgZubYhlRBjEEhZQ85H4IGfRe6k9h74lWPXqcZxoBq6_.jpg)

![Rii RK400 RGB Wired Gaming Keyboard and Mouse Set — 4](https://bargainpostbox.co.uk/i/XAl1GQ4M_NC2zIl7OUVuFMrQchd5aRqk0IE8bu_G7HKnYMtEpsbbvGnrrs2y8cFpctDUyV9wqv3ke8LAE9_BTFPV1iEDU5O-eoUPSOtoOhpSBVSiC22VdXu1.jpg)

![Rii RK400 RGB Wired Gaming Keyboard and Mouse Set — 5](https://bargainpostbox.co.uk/i/RCXta9w48r9tqhJKIQw0STI9JtL-DmzE96e4gjLwVPWFQof8InrH74DRHoIaSk2emDSG_SbQKRdg7inc_zVZvXO_qYAzHlEwaioOxVb0iVVleX4HFAG0fuqY.jpg)

![Rii RK400 RGB Wired Gaming Keyboard and Mouse Set — 6](https://bargainpostbox.co.uk/i/dXjGfrOnm0rFVXu_2SZ8HTmhP9SCaO_LyWoKRKyJSXmy6X03LV_iPslkizNMSMj-L9rFez_p9TajmDlksfNPgWw4yVk8rvUNNp2uXKFElTpXvbR3X_TPHkEv.jpg)

![Rii RK400 RGB Wired Gaming Keyboard and Mouse Set — 7](https://bargainpostbox.co.uk/i/rTjl2SsQQ8GH9h0Lqy44Rv-mQkJG7gFWC7C4QAAksCqPhWYD9AJcJ3m2mswSqd_iLfzPVjs3INvihQtQ6PYw8WvSGxvahn5E06xu5n8OXKsc72FsEGCjg9OI.jpg)