Comparison Razer BlackWidow 2019 vs Razer BlackWidow Chroma

The length of the cable that the keyboard is equipped with for wired connection (see "Connection type").

When choosing this parameter, you should first of all take into account the distance from the device to the connection port: a cable that is too short may simply not reach the connector, and a cable that is too long may get confused at hand and create inconvenience. As for specific values, the reference length is 1.8 m. However, there are cables both shorter and longer.

The number of additional keys provided in the design of the keyboard.

Such keys do not belong to the standard layout and are intended for quick access to specific functions or individual applications — for example, to control the media player or open mail with one click. This function is convenient because commands from additional keys are usually recognized by the system regardless of what is on the screen — thanks to this, for example, you do not have to close the text editor to switch tracks in the player.

Note that in this case we are talking about individual keys that have a strictly defined purpose and corresponding markings. Programmable buttons, the Fn key (see below) and the functions of the main keys implemented through Fn are not taken into account in this paragraph.

The number of programmable keys provided in the design of the keyboard. Like the additional ones described above, such keys are located outside the standard layout. At the same time, they do not have a rigidly defined purpose — each individual function can be set by the user himself, hence the name. Some manufacturers, however, can initially programme these keys, but this programme can still be changed if desired.

The advantage of such equipment is obvious: additional features of the keyboard can be easily customized. Gamers especially appreciate this feature, so programmable keys are often found in gaming models. On the other hand, the keys themselves usually have neutral markings (for example, P1, P2 ...), and the user has to remember which function is “linked” to where; this can cause confusion.

Technology aimed at neutralizing phantom button presses in keyboards with gaming ambitions. The function allows you to simultaneously press numerous keys without false positives of adjacent buttons — a similar situation often occurs in membrane keyboards due to their design features.

A parameter that determines the maximum number of simultaneously pressed keys, the signal from which the keyboard is able to process and transmit to the computer. Instead of the "lattice" symbol in the abbreviation KRO, a number is indicated showing the allowable number of simultaneously pressed buttons. Most membrane keyboards come in the 2KRO and 3KRO grades, mechanical models usually start at 6KRO. The NKRO marking says that it is possible to issue a signal from an unlimited number of keys in one sitting.

The presence in the keyboard of its own built-in memory.

This feature is found mainly in high-end models of game specialization(see "Intended use"). The built-in memory in such keyboards is mainly used to store user settings — for example, the set functions of programmable keys — as well as macros (sequences of commands that are activated by pressing one or two buttons). Anyway, the presence of its own memory means extended options for customizing the keyboard.

The number of native USB ports in the keyboard design.

The presence of these ports actually allows you to use the keyboard as a USB hub — for connecting various peripherals to a computer. Such a connection is convenient because the connectors are literally at hand, you do not need to reach for the system unit. The number of ports corresponds to the number of USB devices that can be connected to the keyboard at the same time without the use of splitters and other additional equipment.

The type of audio jack provided in the design of the keyboard (if it has such a function at all).

The audio jack on the keyboard is often more convenient than the jack on the PC case: it is right under the user's hand, you do not need to reach for the system unit to connect audio devices (headphones, microphones, etc.). Specific types of connectors can be as follows:

— Mini-Jack (2x3.5 mm). A set of two 3.5mm mini-jacks. It is for such connectors that plugs are made in most modern headphones, as well as specialized computer speakers and microphones. Note that each of the jacks has its own specialization: one (usually green) is an output for headphones / speakers, the second (red) is an input for a microphone (or headset microphone plug). The same principle of connecting audio devices is used in most modern sound cards, so this option is most popular in keyboards.

— Mini-Jack (4-pin 3.5 mm). A specific type of 3.5 mm mini-Jack connector that has 4 pins (instead of the standard 3). It is intended mainly for connecting mobile headsets: such headsets, unlike computer ones, have one plug through which both headphones and a microphone work. However, ordinary “ears” can also be connected to the 4-pin socket — this possibility is allowed by the design. Connectors of this type are found mainly in tablet keyboards, as well as in some gaming models.

The presence of additional effects in the backlight provided in the keyboard (see above). For models with the backlight synchronization function, this item indicates the synchronization technology.

Additional backlight effects can be different: multi-coloured backlighting of individual keyboard zones, smooth “flowing” of one colour into another, response to system or game events, etc.; specific features should be clarified for each model separately. As for synchronization, it allows you to coordinate the backlighting of various system components — keyboards, case mice, graphics cards, etc.; this opportunity is especially appreciated by the owners of high-end gaming stations. Coordination requires that all highlighted components support the same technology; usually, each manufacturer has its own — Aura Sync for Asus, RGB Fusion for Gigabyte, etc.