SteelSeries Apex M400 Illuminated Mechanical Review

SteelSeries gaming keyboard review. Updated 2021 SteelSeries specs, latest Amazon prices, and score - built around ratings such as PC gaming grade, durability, ergonomics and value for money. Is this SteelSeries keyboard right for a PC gamer?

Should you buy the SteelSeries Apex M400 Illuminated Mechanical?

PCGameBenchmark has reviewed pretty much every gamer keyboard available on Amazon. We've ignored some of the smaller and generic brands, and we've filtered to only show the best wired USB and wireless gaming keyboards available to buy right now - and this SteelSeries gaming keyboard is good enough to make our 2021 list.

Now's a great time to buy a new PC gaming keyboard. The keyboard is a vital part of your gaming PC setup and the right one can make a big difference to your overall experience. There are always SteelSeries deals to be had so there’s no need to wait around for Black Friday 2021 for a cheap gaming keyboard. There's a massive range to choose from too. We track and show the latest discounts and whether they’re available on Amazon Prime delivery.

A responsive, comfortable gaming keyboard is super important when you’re gaming and that office keyboard that came with your PC could well be holding you back from gaming greatness online. If you’re looking to get the drop on someone in Fortnite or Apex Legends, you don’t want a spongy, slow responding keyboard ruining your game. We recommend mechanical keyboards for gaming, with their clicky keys - but you may prefer quiet, low-profile, membrane keyboards. Some players like a gaming keyboard and mouse combo - but there is no real gameplay benefit in buying the same brand for both.

PCGameBenchmark ratings are all built up from the scores the Amazon community give the most important aspects of a PC gaming keyboard. We merge those scores to create a final percentage rating.

Check out best deals on cheap gaming keyboards and the latest deals on Amazon.

SteelSeries Apex M400 Illuminated Mechanical
PCGameBenchmark Rating: 88%

  • SteelSeries Apex M400 Illuminated Mechanical review - gaming keyboard tested

SteelSeries Apex M400 Illuminated Mechanical Specs


3.75 lb (1.7 kg)

Dimensions (L x W x H)

43.94 cm x 4.06 cm x 13.72 cm
17.3 in x 1.6 in x 5.4 in



Model Number


SteelSeries Apex M400 Illuminated Mechanical Features

  • SteelSeries QX1 Linear Mechanical Gaming Switches
  • Reinforced steel back plate construction
  • 100% Programmable with SteelSeries Engine
  • Fully-programmable keys & macros
  • 100% anti-ghosting and 104-key rollover

SteelSeries Apex M400 Illuminated Mechanical DEALS - BEST prices

Other SteelSeries gaming keyboards

Here are a few other options...