Rii RK400 RGB Wired Gaming Keyboard and Mouse Set

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Product guide

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.

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.

Price

£20.98Save 16%

Reference price: ~~£24.98~~

Price checked: 12 Nov 2026

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Pros and cons

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.

Technical specifications

16 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

What to know before buying

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.

What’s in the box

KeyboardCheck selected pack
MouseCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

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.

Rii RK400 RGB Wired Gaming Keyboard and Mouse Set · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 3,304 ratings

5 stars68%68%
4 stars18%18%
3 stars7%7%
2 stars3%3%
1 star4%4%

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.
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.
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.