Amazon Discounts Logitech K400 Plus to $27.03

The popular wireless keyboard is now available for 23% off its standard list price of $35.

Updated on Oct. 29, 2026 in Couponing

Bold vector editorial illustration of a wireless keyboard silhouette and a small receiver, representing consumer electronics security. — Amazon has discounted the Logitech K400 Plus wireless keyboard to $27.03, though buyers must update firmware to address a security vulnerability. AI Illustration. Upload story photo >

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Amazon has reduced the price of the Logitech K400 Plus keyboard to $27.03. This deal offers shoppers a 23% discount on the hardware compared to its $35 retail price.

Why it matters

The K400 Plus remains a popular choice due to its proprietary RF protocol that eliminates complex driver installations and pairing. Buyers should note that a firmware update is required to mitigate the MouseJacking security vulnerability.

The K400 Plus features a 10-meter wireless range and a durability rating of 5 million keystrokes. The device weighs 390 grams and incorporates 60% post-consumer recycled plastic content.

The players

Amazon

Amazon is a global retail platform currently offering the Logitech K400 Plus at a discounted rate.

Logitech

Logitech is a manufacturer of computer peripherals that produces the K400 Plus keyboard and the Logi Options+ software.

The details

This keyboard utilizes a USB-A Unifying receiver on the 2.4 GHz band to avoid interference through frequency hopping. Users must run the Logi Options+ software utility to apply the necessary firmware patch for the CVE-2016-10761 security vulnerability.

Logitech introduced the K400 Plus keyboard in 2015.
A firmware update to patch the MouseJacking vulnerability was released in February 2016.
Logitech launched the Logi Bolt wireless platform in 2021.
Amazon set the current sale price of $27.03 in October 2026.

Culture Shift

The K400 Plus uses an older Unifying receiver, marking a departure from the newer Logi Bolt wireless platform launched by the company in 2021. This transition reflects a broader industry movement toward more secure, encrypted wireless connectivity in office peripherals.

Shoppers can save roughly $8 by purchasing the unit at the current discounted rate compared to the standard list price. Users must prioritize running the Logi Options+ software immediately upon setup to ensure the receiver is patched against security risks.

The takeaway

When purchasing legacy peripherals, always check if firmware updates are available to address known security vulnerabilities. Updating your software immediately ensures your device is protected against remote hijacking threats.