Keyboards / Compare

Logitech K400 Plus Wireless Touch Keyboard vs Redragon K552 Kumara Mechanical Gaming Keyboard

A

Product A: Logitech

K400 Plus Wireless Touch Keyboard

56 of 164 known

Change Logitech K400 Plus Wireless Touch Keyboard

Compare the Redragon K552 Kumara Mechanical Gaming Keyboard with

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B

Product B: Redragon

K552 Kumara Mechanical Gaming Keyboard

59 of 164 known

Change Redragon K552 Kumara Mechanical Gaming Keyboard

Compare the Logitech K400 Plus Wireless Touch Keyboard with

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All 164 fields

Every value links to where we found it.

Only differences

ALogitech K400 Plus Wireless Touch Keyboard

BRedragon K552 Kumara Mechanical Gaming Keyboard

General

7 of 9 differ

Series

Not available

Kumara1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026The maker names the product KUMARA K552.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

Y-R0055, 920-007119, 920-007145, 920-007143, 920-007144, 920-007157, 920-007141, 920-007131, 920-007151, 920-007129, 920-007127, 920-007135, 920-007137, 920-007133, 920-0071391Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026The US page sells 920-007119, Black, English International (QWERTY). The page gallery uses a layout photo with pound and euro legends. Y-R0055 is the keyboard model number from the support specification.2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026Keyboard model number Y-R0055, inside the battery compartment. Receiver C-U0007 or C-U0008.3Maker product pagelogitech.com/en-gb/shop/p/k400-plus-touchpad-keyboardRead 10 October 2026Part numbers of the regional SKUs on the GB and US store pages.

K552, K552-KR, RED-K552-M13BK2Maker product pageredragon.in/products/kumara-k552-rainbow-gaming-keyboardRead 20 October 2026Redragon India lists SKU K552 KR BK, which matches the model name K552-KR on Amazon.5Maker product pageredragonshop.com/products/redragon-kumara-k552.jsonRead 20 October 2026Store feed variant SKU RED-K552-M13BK.6Retailer pageamazon.com/dp/B016MAK38URead 20 October 2026Item details: Model Number K552, Model Name K552-KR, ASIN B016MAK38U.

GTIN / EAN

0978551153006Retailer pageelectronicexpress.com/catalog/206917/logitech-920-007119-k400-plus-wireless-touch-keyboardRead 10 October 2026Retailer page for manufacturer part 920-007119 lists UPC 097855115300.

4897093825148, 7400024003465Maker product pageredragonshop.com/products/redragon-kumara-k552.jsonRead 20 October 2026Store feed variant barcode 4897093825148. The feed also dates the listing to 2021-05-08, which is a store listing date and not the launch.6Retailer pageamazon.com/dp/B016MAK38URead 20 October 2026Item details: GTIN 00740002400346 and UPC 740002400346. The listing also names two other UPCs, 796594786894 and 780682638264, not stored.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

10 June 20157Press releasenews.logitech.com/press-releases/news-details/2015/Logitech-Simplifies-Connecting-Your-PC-to-Your-TV-with-New-Living-Room-Keyboard/default.aspxRead 10 October 2026Press release dated 10 June 2015.

Not available

Status

Not available

Available1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026US store page for the black Outemu Red model. It shows Sold out on the access date. Amazon US lists it in stock, see the Amazon source.6Retailer pageamazon.com/dp/B016MAK38URead 20 October 2026Amazon US shows Add to cart for the Redragon K552 with Red Switches, 34.6K ratings. The maker's own store shows Sold out.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$39.997Press releasenews.logitech.com/press-releases/news-details/2015/Logitech-Simplifies-Connecting-Your-PC-to-Your-TV-with-New-Living-Room-Keyboard/default.aspxRead 10 October 2026Suggested retail price $39.99 for the US.

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

US1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026US store page priced in USD at $44.99. Other regions are not covered.

ColoursiThe maker's own colour names

Black, White1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Black on the US page. The GB page also lists White for the UK layout.3Maker product pagelogitech.com/en-gb/shop/p/k400-plus-touchpad-keyboardRead 10 October 2026White is offered for the UK layout only.

Black1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Black. The store tag says Color-Black and the product has no colour option.

Segment

Not available

Gaming1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026The store sells it as a Mechanical Gaming Keyboard.

Sold asiParts fitted when sold. A complete keyboard includes switches and keycaps. Barebones includes neither.

Complete1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Sold with its receiver and batteries as a complete keyboard.

Complete1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Sold fully assembled. The package list holds only the keyboard and a user manual.

Layout

6 of 12 differ

Form factoriLayout size or shape. A percentage describes the layout, not the number of keys.

Other1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Compact keyboard with a function row, no number pad, no navigation column and a touchpad on the right. None of the size options fits, so other is stored.

TKL1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Matrix Compact TKL (87 Keys). Store tag: Size 80% | TKL.

Layout standardiPhysical key layout standards sold for this model. Regional language names are listed separately.

ISO4Maker product pageresource.logitech.com/content/dam/logitech/en/products/keyboards/k400-plus/gallery/k400-plus-black-gallery-1-uk.pngRead 21 October 2026The photo shows a tall ISO Enter key, a key left of Z and a hash key. Only the International and UK layouts are covered by this photo. The other language layouts are not given a standard.

ANSI1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026US QWERTY is the US ANSI layout. The maker photos show the wide ANSI Enter key.

Regional layouts

English International (QWERTY), English UK (QWERTY), Hungarian (QWERTZ), Danish / Norwegian / Swedish / Finnish (QWERTY), Belgian (AZERTY), Czech / Slovakian (QWERTZ), French (AZERTY), German (QWERTZ), Italian (QWERTY), Spanish (QWERTY), Swiss (QWERTZ), Portuguese (QWERTY)3Maker product pagelogitech.com/en-gb/shop/p/k400-plus-touchpad-keyboardRead 10 October 2026Layout names as the maker writes them.

US QWERTY1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Layout US QWERTY.

Keys in regional layoutiPhysical typing and function keys in the stated regional layout. Separate media buttons, macro buttons and rotary controls are excluded. A Touch ID or Lock key in a key row counts, as on Apple keyboards.

804Maker product pageresource.logitech.com/content/dam/logitech/en/products/keyboards/k400-plus/gallery/k400-plus-black-gallery-1-uk.pngRead 21 October 2026Maker gallery photo of the English International layout, also used for the UK layout. Counted 80 keys: 15 in the top row (Esc, F1 to F12, Ins, Del), then 14, 14, 13, 13 and 11. The three volume and mute buttons, the power switch, the touchpad buttons and the yellow button are not counted.

871Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Compact TKL (87 Keys). Features: Ultra-compact 87 Keys Layout. The 12 multimedia functions are on Fn plus F1 to F12 and add no keys.

Key legends for

Windows1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026The maker photo shows a Windows logo key.

Windows1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026The maker photos show a Windows logo key. The manual names the [WIN] key.3Owner's manualcdn.shopify.com/s/files/1/0012/4957/4961/files/K552_User_Manual.pdfRead 20 October 2026Page 2 and 4: OS support Windows XP, Vista, Win7, Win8, Win10 and the [WIN] key.

Numpad

No1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026No number pad in the maker photo. A touchpad sits on the right.

No1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 202687-key tenkeyless layout without a numeric block. The maker photos show no numpad.

Function row

Yes1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026F1 to F12 printed on the top row in the maker photo.5Maker product pagesupport.logi.com/hc/en-gb/articles/360023264334-Shortcut-and-function-keys-on-the-K400-Plus-keyboardRead 10 October 2026F1 to F12 are reached with Fn. The keys are the top row shortcut keys.

Yes1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Maker photos show the F1 to F12 row. The manual lists FN+F1 to FN+F12 multimedia functions.3Owner's manualcdn.shopify.com/s/files/1/0012/4957/4961/files/K552_User_Manual.pdfRead 20 October 2026Page 4: FN+F1 to FN+F12 are the multimedia functions of the F1 to F12 keys.

Dedicated arrow keys

Yes1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Arrow keys in the bottom row of the maker photo, shared with the Home, Page Up, Page Down and End legends.

Yes1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Maker photos show dedicated arrow keys with W, A, S, D swap legends.

Navigation keysiAvailability of Home, End, Page Up and Page Down as dedicated keys or through an Fn layer.

Fn layer5Maker product pagesupport.logi.com/hc/en-gb/articles/360023264334-Shortcut-and-function-keys-on-the-K400-Plus-keyboardRead 10 October 2026Shortcut table: Fn plus left arrow is Home, Fn plus right arrow is End, Fn plus up arrow is Page Up and Fn plus down arrow is Page Down.

Full1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Maker photos show dedicated Ins, Home, PgUp, Del, End and PgDn keys above the arrows.

Key stagger

Row-staggered1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Standard row-staggered layout in the maker photo.

Row-staggered1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Maker photos show the usual row-staggered layout.

Bottom row

Not available

Not available

Low profile

Yes8Reviewtechtactician.com/logitech-k400-plus-trackpad-keyboard-hands-on-reviewRead 10 October 2026Hands-on review text: low-profile membrane switches with pretty deep key travel.

Not available

Switches

11 of 25 differ

Switch sensing technologyiKey sensing technology. Hall effect and TMR are different sensor types. A mixed board is identified explicitly. Magnetic switch housing alone does not identify the sensor.

Membrane8Reviewtechtactician.com/logitech-k400-plus-trackpad-keyboard-hands-on-reviewRead 10 October 2026Hands-on review text: low-profile membrane switches.

Mechanical1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Page: Tenkeyless compact mechanical gaming keyboard with dustproof mechanical switches.

Switch feel

Not available

Linear1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Page: Linear. Redragon copy says fast action with minimal resistance without a tactile bump feel. The switch comparison table row Outemu Red lists Operation Style Linear.

Switch maker

Not available

Outemu1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Switches Outemu Red Switch. Title: With Outemu Red Switch.

Switch models

Not available

Outemu Red1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Outemu Red Switch.

Switch stem

Not available

MX cross8Reviewinputmag.com/reviews/redragon-k552-review-35-dollar-amazon-mechanical-keyboard-shouldnt-be-this-good/ampRead 21 October 2026Same review: the red Outemu linear switches are called a Cherry MX clone. The review says the board is hot-swappable with other Outemu switches. Stored as the MX cross stem.

Actuation forceiForce at the point where a key registers. Initial spring force is not actuation force. Adjustable switches require a stated actuation setting.

Not available

40gf1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026The KEYBOARD SWITCHES COMPARISON table on the page lists Outemu Red: Linear, 40g operation force. The table is shared by Redragon store pages, and the row matches the Outemu Red switch the specifications name.

Bottom-out forceiForce at the end of the switch travel. It is not the initial spring force or the tactile peak.

Not available

Not available

Tactile bump forceiPeak force of the tactile bump. It is not the force at initial movement or at bottom-out.

Not available

Not available

Actuation pointiDistance before a key registers. For adjustable boards, the default profile or setting is stated in the source note.

Not available

2mm1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Same comparison table, Outemu Red: Actuation Point 2.0mm.

Total travel

Not available

4mm1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Same comparison table, Outemu Red: Total Travel Distance 4.0mm.

Rated keystrokes

5million1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Key Life: up to 5 million keystrokes.

50million1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Same comparison table, Outemu Red: Life Span 50 million keystrokes.

Factory-lubed switches

Not available

Not available

Adjustable actuation

Not available

Not available

Actuation rangeiSelectable actuation distances. These are settings, not a measured usable travel range.

Not available

Not available

Actuation stepiSmallest documented increment between selectable actuation settings.

Not available

Not available

Per-key actuationiActuation can be configured individually for supported keys. The source note identifies any excluded keys.

Not available

Not available

Rapid trigger

Not available

Not available

Minimum rapid trigger movementiSmallest selectable movement used to reset or reactivate a key. This is a setting, not measured accuracy.

Not available

Not available

Multi-action keys

Not available

Not available

SOCD handling

Not available

Not available

Analog inputiCan send variable gamepad or joystick input. Magnetic sensing or adjustable actuation alone does not establish analog output.

Not available

Not available

Hot-swap socketsiSwitches can be replaced without soldering. Magnetic compatibility must be checked separately.

None4Maker product pageresource.logitech.com/content/dam/logitech/en/products/keyboards/k400-plus/gallery/k400-plus-black-gallery-1-uk.pngRead 21 October 2026Membrane keys on a closed body, see switch_technology. Neither the maker photo nor the specification describes switch replacement.

Other1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Hot-swappable with Outemu switch. The page does not say whether the sockets take 3-pin or 5-pin switches, so the socket type is stored as other. Older K552 versions with soldered switches exist, so the claim belongs to this listing only.2Maker product pageredragon.in/products/kumara-k552-rainbow-gaming-keyboardRead 20 October 2026Redragon India: Hot Swappable with Outemu Switch, same as the US store page.

Compatible switches

Not available

Hot-swappable with Outemu switch1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications, Hot-swappable: Hot-swappable with Outemu switch. Maker wording.

Stabilizers

Not available

Not available

Factory-lubed stabilizers

Not available

Not available

Keycaps

2 of 5 differ

Keycap material

ABS9Reviewrtings.com/keyboard/reviews/logitech/k400-plusRead 10 October 2026Public review summary says the ABS keycaps feel slippery. Only the public text is used. The page returned no readable body to the fetch tool, so the text comes from the search excerpt of the review.

ABS8Reviewinputmag.com/reviews/redragon-k552-review-35-dollar-amazon-mechanical-keyboard-shouldnt-be-this-good/ampRead 21 October 2026Input review of the K552 with red Outemu switches, dated 2021-08-19. The spec list says Double shot ABS keycaps.

Legend method

Not available

Doubleshot6Retailer pageamazon.com/dp/B016MAK38URead 20 October 2026Product description by the Redragon Official seller: Double Injection Molded Keycap, smooth, not easy to scratch and wear-resistant.8Reviewinputmag.com/reviews/redragon-k552-review-35-dollar-amazon-mechanical-keyboard-shouldnt-be-this-good/ampRead 21 October 2026Same review: the spec list says double shot ABS keycaps and the text says the legends will not disappear over time.

Keycap profile

Not available

Not available

Keycap thickness

Not available

Not available

Shine-through legendsiLight passes through the legends. Translucent keycap sides alone do not count.

Not available

Yes1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026The maker photos show the legends lit. Page: keycaps offering crystal clear uniform backlighting.

Performance

2 of 11 differ

Polling rate per connectioniDocumented report rates for each connection. Required receivers or optional adapters are identified in the row and source note.

Not available

Not available

Max polling rate

Not available

Not available

Polling rate (wired)

Not available

Not available

Polling rate (2.4 GHz)

Not available

Not available

Polling rate (Bluetooth)

Not available

Not available

Scan rateiHow often the keyboard reads its switches. A USB report rate does not establish a scan rate.

Not available

Not available

Input latency (claimed)iMaker-published input or response latency with conditions in the source note. Do not calculate this from polling rate.

Not available

Not available

Key rollover per connectioniKeys registered simultaneously over the stated connection. Connection is omitted if the source does not specify it.

ALogitech K400 Plus Wireless Touch Keyboard

Not available

BRedragon K552 Kumara Mechanical Gaming Keyboard

Connection	Rollover
USB (wired)	NKRO

Source1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Page: all 87 keys are conflict-free N key rollover. Wired connection only.

Anti-ghosting

Not available

Yes1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Anti-ghosting Keys 100% Anti-Ghosting.

Adjustable debounce

Not available

Not available

Minimum debounce

Not available

Not available

Measured

None of 7 known

Latency per connection (measured)iReviewer measurements for one tested setup per row. Settings and test method are stated in the source note. Missing conditions are not inferred.

Not available

Not available

Actuation point (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Total travel (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Operating force (measured)iReviewer-measured force at actuation. The switch and actuation setting are stated in the source note.

Not available

Not available

Typing noise (measured)iReviewer-measured A-weighted typing sound level. Measurement distance and conditions are stated in the source note.

Not available

Not available

Battery life (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Weight (measured)iReviewer-measured keyboard weight without cable or wrist rest. The tested configuration is stated in the source note.

Not available

Not available

Connectivity

9 of 18 differ

Connections

2.4 GHz1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Connection type: Logitech Unifying protocol (2.4 GHz). No Bluetooth and no cable.2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026Connection type: Logitech Unifying protocol (2.4 GHz).

USB (wired)1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Keyboard Connectivity Wired.

Wireless technology

Logitech Unifying1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Maker text: plug-and-play USB Unifying receiver.

Not available

Bluetooth

Not available

Not available

Bluetooth device slots

Not available

Not available

Devices it can switch betweeniDistinct device connections available for switching. Do not infer this by adding wireless modes or paired Bluetooth slots.

Not available

Not available

Device switchingiControl used to switch between paired device hosts. Connection-mode and OS switches are described separately.

Not available

Not available

Receiver connector

USB-A2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026Required accessory: USB Unifying receiver, USB 2.0 full speed. The receiver is 18.7 x 14.4 x 6.1 mm. The plug type is not named. A Unifying receiver is a USB Type-A plug.

None1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Keyboard Connectivity Wired. The package list holds only the keyboard and a user manual, so there is no receiver.

Receiver storage in keyboard

Not available

Not available

Receiver shared with other devices

Yes11Maker product pagelogitech.com/en-us/resource-center/what-is-unifying.htmlRead 21 October 2026Logitech text: connect up to six Logitech Unifying wireless mice or keyboards to one Unifying USB receiver. The K400 Plus page names the connection as the USB Unifying receiver.

Not available

Wireless range

10m1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Wireless range: more than 33 ft (10 m). Page text says up to 33 ft (10 meters). Range may vary with user, environmental and computing conditions.

Not available

Detachable cable

Not available

Not available

Port on keyboard

None2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026Technical table: power is replaceable batteries and the connection is the Unifying receiver. It lists no keyboard port and no charging port (battery life not rechargeable).

Not available

Cable plug

Not available

Not available

Cable

Not available

Not available

Cable length

Not available

1.8m1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Cable Length 6 ft / 1.8 m. Cable type and whether it is detachable are not stated. Amazon calls it braided and the Switch and Click review of the RGB sibling calls it rubber, so neither is stored.

USB passthrough

No4Maker product pageresource.logitech.com/content/dam/logitech/en/products/keyboards/k400-plus/gallery/k400-plus-black-gallery-1-uk.pngRead 21 October 2026No USB port in the maker photo. The technical specification lists the Unifying receiver as the only connection and two AA batteries as power.

Not available

Works withiSystems on which the keyboard works. Configuration software may have narrower system support.

Windows, ChromeOS, Android1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026US page: Windows 7, Windows 8, Windows 10 and later, Android 7 or later and Chrome OS. The support specification says Android 5.0 or higher. Android version is not stored.

Windows, macOS, Linux1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Page: Windows 10, 8, 7, Vista or XP, with limited macOS keyboard support. Linux comes from the Amazon bullets.6Retailer pageamazon.com/dp/B016MAK38URead 20 October 2026Item details: MacOS, Windows. Bullets: compatible with Windows, macOS, Linux and most gaming systems.

Consoles

Not available

Not available

Battery

6 of 16 differ

Battery type

AA1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Battery: 2 x AA (included).

Not available

Number of batteriesiNumber of replaceable AA or AAA cells required. Internal rechargeable battery packs are not counted here.

21Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Battery: 2 x AA (included).

Not available

Battery capacity

Not available

Not available

User-replaceable battery

Yes2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026Power type: replaceable.

Not available

Battery life per mode (claimed)iMaker estimates. Store one published native duration unit per row: hours, days or months. Days and months describe calendar use including idle time, not continuous runtime. Do not convert calendar estimates into hours. Connection, lighting and polling rate are included only when published. Brightness, workload, screen status, sleep settings and up-to qualifiers go in the source note.

ALogitech K400 Plus Wireless Touch Keyboard

Lighting	Months
Off	18

Source1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Battery: 18 months. Battery life may vary based on user and computing. Stored as 18 months of calendar use. No polling rate or hours are published. The keyboard has no backlight, so lighting is stored as off.2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026Battery life (not rechargeable): up to 18 months.

BRedragon K552 Kumara Mechanical Gaming Keyboard

Not available

Longest battery life (claimed)iLongest maker estimate published in hours across the listed modes. Rows published in days or months do not contribute. Conditions can differ between products.

Not available

Not available

Battery life, lighting offiLongest maker estimate published in hours with lighting off. Calendar-day and calendar-month estimates are not converted and do not contribute.

Not available

Not available

Battery life, lighting oniLongest maker estimate published in hours with lighting enabled. Calendar-day and calendar-month estimates are not converted and do not contribute. Brightness and display conditions are stated in the source note.

Not available

Not available

Battery life, backlight on (claimed)iLongest maker up-to estimate published in calendar days with backlighting enabled. Includes idle time and the source-defined usage pattern, not continuous runtime. Brightness, workload, connection and sleep conditions remain in the table and source note. Hours and months are not converted.

Not available

Not available

Battery life, backlight off (claimed)iLongest maker up-to estimate published in calendar months with backlighting off. Includes idle time and the source-defined usage pattern, not continuous runtime. Workload, connection and sleep conditions remain in the table and source note. Hours and days are not converted.

18months=CalculatedFrom Battery life per mode (claimed)

Not available

Charging port

None2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026Battery life (not rechargeable).

Not available

Full charge timeiPublished time for a full charge. Approximate times remain qualified in the source note.

Not available

Not available

Quick charge

Not available

Not available

Use while charging

Not available

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Solar charging

Not available

Not available

Battery indicator

Not available

Not available

Build

2 of 8 differ

Case material

Plastic. The black plastic parts contain 60% certified post-consumer recycled material1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Materials and Sustainability panel: the plastic parts include certified post-consumer recycled plastic. Black plastics: 60% of recycled material. The figure excludes packaging, printed wiring assembly, FFC cable and touchpad. The polymer grade is not stated. The black keyboard of the US page is the one described.13Retailer pagebhphotovideo.com/c/product/1357323-REG/logitech_920007119_k400_plus_wireless_touch.htmlRead 21 October 2026Specs tab for MFR 920-007119, General row Material of Construction: Plastic. The same page lists package weight 1.15 lb and box 15.15 x 6.15 x 1.25 in, which conflicts with another retailer's 465 g and 370 x 153 x 31 mm for the same SKU, so no package size or weight is stored.

Metal alloy and ABS1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Page: the keyboard base is made of metal alloy and ABS with plate-mounted mechanical keys and switches. The store tag Case Material-Plastic is a coarse filter tag and the page text is stored.6Retailer pageamazon.com/dp/B016MAK38URead 20 October 2026Item details: Enclosure Material Acrylonitrile Butadiene Styrene, Metal Steel. Keyboard Plate Material Metal. Agrees with the maker's metal alloy and ABS base.

Plate material

Not available

Not available

Mount style

Not available

Bottom5Maker product pageredragonshop.com/products/redragon-kumara-k552.jsonRead 20 October 2026Store feed tag: Mount Style-Bottom Mount. It is a store filter tag and the page text gives no other mount detail. The page text says only that the keys and switches are plate-mounted.

Flex cuts in PCB

Not available

Not available

Sound dampeningiDampening layers the maker or a review names. Foam whose position in the stack is not stated is foam. Films, pads and silicone parts that fit no other option are other.

Not available

Not available

Typing anglesiKeyboard slope for each supported foot position, starting with the lowest. An adjustable-foot count does not establish angles. When the maker publishes only the angle with the feet out, that angle is stored alone.

Not available

Not available

Spill resistant

Yes1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Key features text: the spill-resistant design and durable keys. Footnote: tested under limited conditions (maximum of 60 ml liquid spillage). Do not immerse keyboard in liquid.

Yes1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Page: splash-proof ergonomic design. This is a maker claim without an IP rating.

IP rating

Not available

Not available

Lighting

2 of 7 differ

Backlight

None2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026Backlighting: n/a.

Not available

LED position

Not available

Not available

Lighting zones

Not available

Not available

Brightness levelsiSelectable onboard brightness steps. The source note states whether the off position is included.

Not available

52Maker product pageredragon.in/products/kumara-k552-rainbow-gaming-keyboardRead 20 October 2026Redragon India lists 5 brightness levels for the Rainbow model. The US store page says multiple brightness levels. Whether off counts as one of the five is not stated.

Side or underglow lighting

Not available

Not available

Lighting sensors

Not available

Not available

Lighting sync

Not available

Not available

Controls

5 of 12 differ

Media keysiPlayback controlled by separate buttons, an Fn layer or a multifunction knob/rocker. Volume controls are listed separately, and knob presses are excluded from the separate media-button count.

Dedicated1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Special keys: Mute, Volume Down, Volume Up. The top row F10 to F12 also work as previous, play and next by default.5Maker product pagesupport.logi.com/hc/en-gb/articles/360023264334-Shortcut-and-function-keys-on-the-K400-Plus-keyboardRead 10 October 2026The top row keys carry Back, Home, Switch application, Menu, Search, Show or hide desktop, Maximize window, Switch screen, Previous track, Play or Pause and Next track by default. Fn is held to reach F1 to F12. Mute, Volume down and Volume up are listed as separate keys.

Fn layer1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026The manual lists 12 multimedia functions on FN+F1 to FN+F12. The store tag Media Keys-No means no dedicated media keys.3Owner's manualcdn.shopify.com/s/files/1/0012/4957/4961/files/K552_User_Manual.pdfRead 20 October 2026Page 4, item 8: 12 multimedia keys, reached with FN plus one of F1 to F12.

Separate media buttonsiSeparate physical buttons for playback or mute, counted once each. Fn shortcuts, macro buttons, knob presses and roller presses are excluded.

11Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026One physical mute button. The two volume buttons are counted in the volume control field.

01Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Maker photos show no separate media buttons. Playback is on Fn plus F-keys.

Volume control

Keys1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Special keys: Volume Down and Volume Up buttons next to the touchpad.

Keys1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Manual: FN+F10 volume down and FN+F11 volume up. No knob in the maker photos.3Owner's manualcdn.shopify.com/s/files/1/0012/4957/4961/files/K552_User_Manual.pdfRead 20 October 2026Page 4: FN+F10 Volume Down, FN+F11 Volume Up, FN+F9 Mute.

Knobs

04Maker product pageresource.logitech.com/content/dam/logitech/en/products/keyboards/k400-plus/gallery/k400-plus-black-gallery-1-uk.pngRead 21 October 2026No knob, roller or dial in the maker photo.

01Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Maker photos show no knob or roller.

Programmable knob

Not available

Not available

Knob press

Not available

Not available

Separate macro keysiSeparate physical keys or buttons intended for macros. Excludes ordinary remappable keys, media buttons and a dedicated software-launch button.

01Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026No separate macro keys in the maker photo. The yellow button is a second left click button.

01Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Maker photos show no separate macro keys.

Built-in screen

None2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026LCD display: n/a. Indicator lights: n/a.

None1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Maker photos show no screen.

Touchpad

Yes2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026Other features: 3.5 inch multi finger touchpad.

No1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Maker photos show no touchpad.

Fingerprint reader

No4Maker product pageresource.logitech.com/content/dam/logitech/en/products/keyboards/k400-plus/gallery/k400-plus-black-gallery-1-uk.pngRead 21 October 2026No fingerprint sensor in the maker photo.

No1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Maker photos show no fingerprint reader.

OS mode switch

Not available

None3Owner's manualcdn.shopify.com/s/files/1/0012/4957/4961/files/K552_User_Manual.pdfRead 20 October 2026Pages 2 to 4 list every FN function of the board. They name no OS mode switch and no key combination for one. The board is Windows plug and play.

Windows key lock

Not available

Yes3Owner's manualcdn.shopify.com/s/files/1/0012/4957/4961/files/K552_User_Manual.pdfRead 20 October 2026Page 4, item 7: hold FN and press WIN to disable the Windows key, repeat to restore.

Software

2 of 10 differ

Software

Logitech Options1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Optional software: Logitech Options. Logitech now recommends Logi Options+.

Not available

Software runs on

Not available

Not available

Open firmware

Not available

Not available

Onboard memory

Not available

Not available

Onboard profilesiProfiles stored on the keyboard, including fixed defaults when the maker counts them. Software-only profiles are excluded.

Not available

Not available

Macros

Not available

Not available

Macros stored onboardiRecorded command sequences run from keyboard storage without the configuration app. Onboard lighting or remapping alone does not establish this.

Not available

Not available

Key remapping

Yes10Maker product pagesupport.logi.com/hc/en-us/articles/360023424013-Customize-K400-Plus-keyboard-function-keysRead 21 October 2026Logitech support article: only the F1 to F9 and Insert keys can be customized in Logitech Options. A key can launch an application or send a keystroke combination. Other keys are not remappable. Logitech Options has reached end of support and Logitech recommends Logi Options+.

Not available

LayersiTotal key mapping layers including the base layer. Lighting effect layers and profile slots are excluded.

Not available

Not available

User firmware updates

Not available

Not available

Ergonomics

0 of 4 differ

Wrist rest

None1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026No wrist rest in the box list.

None1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Wrist Rest No.

Wrist rest material

Not available

Not available

Tenting

Not available

Not available

Tenting angles

Not available

Not available

Dimensions and weight

2 of 6 differ

DimensionsiKeyboard body dimensions with fitted keycaps, without wrist rest and with feet folded. Any different measurement condition is stated in the source note. Width is the longest side, depth runs front to back and height is the thickness. Map by size when the maker's labels differ.

Width354.3Depth139.9Height23mm(13.9 × 5.5 × 0.9 in)2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026Technical table: keyboard height 23.0 mm, length 354.3 mm, depth 139.9 mm. The table labels length as the long side and depth as the front to back size. The US store page says 23.5 mm for the thickness.

Width354Depth123Height37mm(13.9 × 4.8 × 1.5 in)1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Product Dimensions 123 (L) x 354 (W) x 37 (H) mm. Mapped by size: width 354, depth 123, height 37. Amazon lists 13.94 x 4.86 x 1.46 in, which is 354.1 x 123.4 x 37.1 mm.6Retailer pageamazon.com/dp/B016MAK38URead 20 October 2026Item Dimensions 13.94 x 4.86 x 1.46 in.

Dimensions with wrist rest

Not available

Not available

Keyboard weightiKeyboard without cable or wrist rest. Weights that include accessories cannot be stored here. A cable that cannot be removed is included. Replaceable batteries are included, as built-in batteries are.

380g(13.4 oz)2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026Technical table: keyboard 380.0 g. The US store page says 390 g. The technical table is used. Neither source says whether the batteries are included.

880g(1.9 lb)1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications: Weight 0.88 kg / 1.93 lbs. 1.93 lbs is 875 g and Amazon lists 875 g. The maker's kg figure is stored.2Maker product pageredragon.in/products/kumara-k552-rainbow-gaming-keyboardRead 20 October 2026Redragon India: 0.88 kg, same as the US store page.6Retailer pageamazon.com/dp/B016MAK38URead 20 October 2026Item Weight 875 g. The maker states 0.88 kg.

Weight including wrist restiKeyboard plus supplied wrist rest, excluding packaging. The source note identifies any included cable.

Not available

Not available

Box dimensions

Not available

Not available

Box weightiOne retail package including its contents. A multi-unit shipping carton weight is excluded.

Not available

Not available

Certifications

1 of 2 differ

Platform certifications

Not available

Not available

Other certifications

FCC ID JNZYR0055 (keyboard)12Regulatory filingfccid.io/JNZYR0055Read 21 October 2026Mirror of the FCC equipment authorization: FCC ID JNZYR0055, model YR0055, 2.4GHz Cordless Keyboard, grantee Logitech Far East Ltd, 2405 to 2474 MHz, original grant 2015-03-12. The support specification names Y-R0055 as the keyboard model number. The receiver has its own model numbers and is not covered.

Not available

In the box

1 of 3 differ

In the box

Keyboard, Logitech Unifying receiver, 2 AA batteries (pre-installed), User documentation1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026Package contents list of the page: Keyboard, Logitech Unifying receiver, 2 AA batteries (pre-installed), User documentation.

Redragon K552 Rainbow Backlit Gaming Keyboard, User Manual1Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026Specifications, Package Included: 1 x Redragon K552 Rainbow Backlit Gaming Keyboard, 1 x User Manual.

Cables included

Not available

Not available

Spare switches

Not available

Not available

Links

Not compared

Product page

www.logitech.com/en-us/shop/p/k400-plus-touchpad-keyboard1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026

redragonshop.com/products/redragon-kumara-k5521Maker product pageredragonshop.com/products/redragon-kumara-k552Read 20 October 2026

Spec sheet

support.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-Specifications2Maker product pagesupport.logi.com/hc/en-us/articles/360023464113-Wireless-Touch-Keyboard-K400-Plus-Technical-SpecificationsRead 21 October 2026

Not available

Manual

Not available

cdn.shopify.com/s/files/1/0012/4957/4961/files/K552_User_Manual.pdf3Owner's manualcdn.shopify.com/s/files/1/0012/4957/4961/files/K552_User_Manual.pdfRead 20 October 2026Redragon Kumara wired mechanical gaming keyboard operating instructions, 2 sheets in 10 languages. English on pages 1 to 5. The file is titled for the single-light and rainbow K552 versions, so it is stored as the nearest maker manual.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year1Maker product pagelogitech.com/en-us/shop/p/k400-plus-touchpad-keyboardRead 21 October 2026US page: 1-Year Limited Hardware Warranty. The GB page states 2 years.

2years4Maker product pageredragonshop.com/pages/warrantyRead 20 October 2026Maker store warranty page: new products bought from Redragonshop.com have a 2 year warranty period. Keyboards are not named. The Amazon listing says 1 year.

Both are also in the API. Back to all keyboards.