The ASUS Marshmallow KW100 is a compact, Bluetooth-only keyboard with a 75% layout, quiet scissor-switch keys and pairing for up to three devices. ASUS rates it at up to 24 months on two AAA batteries. It suits people who move between a laptop, a tablet and a phone and want a quiet, portable keyboard in a pastel colour. This article covers the Green Tea Latte colour listed on Amazon.in.
Quick take: the KW100 is a sensible pick for multi-device, low-noise typing on a tidy desk. It is not ideal if you need a number pad, a USB receiver for a desktop PC without Bluetooth, or backlit keys. One feature on the Amazon.in listing, a dedicated Copilot key, is not mentioned on ASUS India’s product page, so confirm it in the listing images if it matters to you.
This review is based on ASUS India’s official product and specification pages and the Amazon.in listing, all checked on 17 October 2026. It is not based on hands-on testing.
At a glance
- Buy it for: quiet typing in shared spaces, switching between up to three devices, long battery life and a compact footprint.
- Avoid it if: you need a number pad, a 2.4GHz USB receiver, backlighting or official Android support.
- Highlights: scissor keys with 1.6 mm travel, built-in silent foam layer with an ASUS claim of under 50 dB per keystroke, two-level kickstands, OS switch keys, 10-million keystroke rating.
- Watch out for: Bluetooth only, no Android in ASUS’s compatibility list, and some listing details that do not match the official specs.
ASUS Marshmallow KW100 specifications
| Specification | ASUS Marshmallow KW100 (official unless noted) |
|---|---|
| Connection | Bluetooth Low Energy 5.0 (no USB receiver listed) |
| Devices | Pairs with up to 3, connects to one at a time |
| Range | 10 m |
| Layout | 75% compact, no number pad |
| Switches | Scissor keys, 1.6 mm key travel |
| Noise | Built-in silent foam layer, under 50 dB per keystroke (ASUS claim) |
| Durability | Up to 10 million keystrokes, UV-resistant key coating |
| Stand | Two-level adjustable kickstands |
| Power | 2 x AAA batteries, up to 24 months (varies with use) |
| Supported OS | Windows 10 or later, macOS 13.2.1 or later, ChromeOS, iOS 17.1.1 or later, iPadOS 17.5.1 or later |
| Dimensions | 282 x 130 x 18.4 mm |
| Weight | 374.8 g |
| Colours (ASUS India) | Rose Clay, Iridescent White, Green Tea Latte, Oat Milk |
| In the box | Keyboard, battery, quick start guide, warranty booklet |
| Copilot key | Claimed on the Amazon.in listing, not mentioned by ASUS India |
| Warranty | 1 year from the manufacturer (Amazon.in listing) |
Check the current price of the ASUS Marshmallow KW100 (Green Tea Latte) on Amazon.in
Bluetooth only: what it means for your setup
The single biggest thing to understand about the KW100 is its connection. ASUS describes it as using Bluetooth Low Energy 5.0, and neither ASUS’s page nor the Amazon.in listing mentions a USB receiver. The listing title says “wireless”, but in practice this is a Bluetooth keyboard.
That is ideal for laptops, tablets and phones, which almost always have Bluetooth built in. It is less convenient for desktop PCs: many budget desktop motherboards do not have Bluetooth, so you would need a USB Bluetooth adapter. A Bluetooth keyboard also typically cannot be used to enter the BIOS or boot menu before the operating system loads, so keep a wired keyboard handy if you build or repair PCs.
The 75% layout: compact but without a number pad
ASUS calls the KW100 a 75% keyboard. That usually means the main typing keys, a function row and arrow keys packed close together, with the number pad and some navigation keys removed or merged. The result is a narrower keyboard (282 mm long, per ASUS) that leaves more room for a mouse and fits easily in a bag.
The trade-off is clear for anyone who enters a lot of numbers. Accountants, data-entry staff and anyone who uses spreadsheets heavily may miss a number pad. The listing’s technical details mention “104” buttons, but that does not match a 75% layout, and ASUS does not publish a key count, so treat that listing figure with caution.
Typing feel and noise
ASUS uses scissor-switch keys with 1.6 mm of travel. Scissor switches are the type found on most laptop keyboards, so if you are used to typing on a laptop, the feel should be familiar. A 1.6 mm travel is on the shallow side compared with traditional desktop keyboards, which suits light, fast typing but may feel thin to people who like deep key presses.
For noise, ASUS says a built-in silent foam layer keeps each keystroke under 50 dB. In everyday terms, that is aimed at libraries, shared offices, meetings and homes where someone else is sleeping or studying nearby. ASUS does not explain how it measured this figure, and we have not seen an independent noise test, so treat it as the manufacturer’s claim.
Switching between three devices and operating systems
The KW100 can store pairings for up to three devices. ASUS’s footnote clarifies that it connects to only one at a time, so you switch rather than type on several at once. A common setup is a work laptop, a personal tablet and a phone.
ASUS also includes two system switch keys to change between Windows, ChromeOS, macOS, iOS and iPadOS modes. This matters because the modifier keys (Ctrl, Alt, Cmd, Option) behave differently across systems, and a correct mode keeps shortcuts like copy and paste working as expected.
Note that ASUS’s compatibility list does not include Android. Bluetooth keyboards often work with Android phones for basic typing, but since ASUS does not list it, there is no official guarantee, and some keys may not behave as labelled.
Battery life and power
ASUS rates the KW100 for up to 24 months on two AAA batteries, with a footnote that battery life varies with usage. This is a long rating because Bluetooth Low Energy uses very little power, and ASUS does not list any backlighting that would drain the cells. ASUS lists “battery” in the package contents, so batteries should be included, but confirm the quantity on delivery.
Replaceable AAA cells have a practical advantage: when they run out, you swap them in seconds rather than waiting for a recharge. The downside is ongoing battery purchases and the need to dispose of used cells responsibly. Rechargeable NiMH AAA cells are an option, though ASUS does not say whether its rating applies to them.
The Copilot key: listing claim vs official page
The Amazon.in listing title and first feature bullet highlight a dedicated Copilot key for quick access to Microsoft’s AI assistant on Windows. ASUS India’s KW100 overview and specification pages do not mention a Copilot key. It is possible the current production version includes one, but we could not confirm it from ASUS’s official page. If this key is important to you, check the keyboard photos on the listing before buying.
Build, colour and portability
At 374.8 g and 18.4 mm high (ASUS figures), the KW100 is light enough to carry with a laptop. Two-level kickstands let you choose between a flatter and a more angled typing position. ASUS says each key has a UV-resistant coating to help it last, and rates the keys for up to 10 million keystrokes.
Green Tea Latte is one of four pastel colours ASUS lists in India. ASUS also says it has removed almost all plastic from the packaging compared with earlier keyboard packaging. ASUS suggests pairing it with the matching Marshmallow MD100 mouse, which is sold separately.
Who should buy the KW100, and who should skip it
Good fit: students and professionals who type on a laptop and a tablet, iPad users who want a compact keyboard, and people in shared spaces who value quiet keys. It also suits anyone who wants a neat desk with a colourful accessory. For more desk ideas, see our work from home desk setup guide.
Skip it: if you need a number pad, a USB receiver for a desktop without Bluetooth, backlit keys for dark rooms, or official Android support. Gamers and heavy typists who prefer deep key travel or mechanical switches should also look elsewhere.
Alternatives worth a look
- Portronics Bubble: a compact multi-device keyboard with both Bluetooth 5.0 and a 2.4GHz USB receiver, pairing with up to three devices and using 78 silent low-profile keys. The receiver makes it easier to use with desktops. See our Portronics Bubble keyboard review.
- Portronics Bubble 3.0: a full-size keyboard with a number pad, Bluetooth 5.3 plus a 2.4GHz receiver, a rechargeable battery with USB-C charging and a dual-angle stand. Portronics also lists Copilot support.
- ZEBRONICS Companion 301: a full-size 2.4GHz keyboard and mouse combo with a number pad, rupee key and 1600 DPI mouse, for a single Windows PC rather than multi-device use.
Before you order
- Colour: this link is for the Green Tea Latte variant (model KW100, listing part number 90XB0880-BKB0Y0). Other colours have separate listings.
- Bluetooth check: make sure each device you plan to use has Bluetooth, or plan to buy a USB Bluetooth adapter for a desktop.
- OS versions: ASUS lists minimum versions, such as iPadOS 17.5.1 and macOS 13.2.1, so update older devices first.
- Copilot key: verify it in the listing photos if you want it.
- Warranty: the Amazon.in listing states a one-year manufacturer warranty from the date of purchase. Keep your invoice.
See the ASUS Marshmallow KW100 in Green Tea Latte on Amazon.in
Frequently asked questions
Does the ASUS Marshmallow KW100 come with a USB receiver?
No receiver is mentioned by ASUS or the Amazon.in listing. ASUS describes the connection as Bluetooth Low Energy 5.0.
Does the KW100 work with Android phones?
ASUS’s compatibility list covers Windows, macOS, ChromeOS, iOS and iPadOS, not Android. Basic Bluetooth typing may work, but it is not officially supported.
How long do the batteries last?
ASUS rates up to 24 months on two AAA batteries and notes that real-world life depends on usage.
Is the ASUS KW100 quiet?
ASUS says its silent foam layer keeps each keystroke under 50 dB. This is a manufacturer claim, and we have not seen an independent measurement.
Does it have a number pad?
No. It uses a compact 75% layout without a number pad.
Conclusion
The ASUS Marshmallow KW100 is a quiet, compact Bluetooth keyboard with sensible features for multi-device users: three pairings, OS switch keys, kickstands and a long battery rating. Its limits are just as clear: no receiver, no number pad, no listed backlight and no official Android support. If those fit your setup, it is an easy keyboard to live with, and the Green Tea Latte colour adds some personality to a plain desk.
Check the current price of the ASUS Marshmallow KW100 on Amazon.in
Related reading on GadgetSoch: Patriot Viper Venom DDR5 32GB 6000 CL30 Review (PVV532G600C30K): Specs, Setup and Caveats and Dyazo 360° Rotating Laptop Stand Review (DZ6862): Features, Fit and Missing Specs.
Sources
- ASUS India: Marshmallow Keyboard KW100 overview, checked 17 October 2026
- ASUS India: Marshmallow Keyboard KW100 tech specs, checked 17 October 2026
- Amazon.in listing for the ASUS Marshmallow KW100 Green Tea Latte (ASIN B0CFF1XMT4), listing data captured 17 October 2026
- Portronics official Bubble and Bubble 3.0 pages and Zebronics official Companion 301 page, checked 17 October 2026
