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Logitech K840 Mechanical Keyboard with Romer G mechanical Switches for PC

4.3 out of 5 stars 681 ratings

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About this item

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  • Exclusive Logitech Romer-G mechanical switches - Japanese engineered mechanical switches provide an expertly-crafted typing experience
  • Anodized aluminum  - durable and robust construction and design that is made to withstand your most demanding typing sessions
  • Easy Access Shortcuts - Get easy access to integrated media and shortcut keys that allow you to control your entertainment
  • Programmable Keys -  Get more customized control over your productivity with reprogrammable keys.   Through Logitech Options, you can reassign your favorite or most useful shortcuts
  • Familiar and durable  - full-size corded keyboard with 1. 8m cable with built-in strain relief for extra durability and reinforced cable strength

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Logitech K840 Mechanical Keyboard with Romer G mechanical Switches for PC
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Customer Rating 4.3 out of 5 stars (681) 4.5 out of 5 stars (93) 4.3 out of 5 stars (163) 4.4 out of 5 stars (2872) 4.5 out of 5 stars (312) 4.1 out of 5 stars (179)
Price $49.95 $39.90 $89.99 $169.00 $156.30 $129.99
Sold By RTA LLC Outlet Digital UltimateDeal4U Das Keyboard Store
Are batteries included? No No No No Yes Yes
Are batteries required? No No No No Yes Yes
Color Black/gray Black black Soft Tactile - Cherry MX Brown Switches Graphite White
Connectivity Technology Cable USB, USB 2.0, USB 3.0 Bluetooth, USB, USB-C Wireless
Hardware Interface USB USB
Item Dimensions 1.35 x 17.52 x 5.2 inches 17.12 x 5 x 1.43 inches 1.5 x 5.2 x 18.1 inches 18 x 6.8 x 1.3 inches 9.1 x 9.1 x 9.1 inches
Item Weight 2.01 lbs 1.00 lbs 2.01 lbs 2.87 lbs 2.58 lbs
Model Year 2017

What's in the box

  • keyboard
  • user guide
  • Product Description

    Keyboard - USB

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    Additional Information

    Warranty & Support Return Policy:You may return any new computer purchased from that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
    Product Warranty: For warranty information about this product, please click here. [PDF ]


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    Climate Pledge Friendly

    Climate Pledge Friendly

    Climate Pledge Friendly uses sustainability certifications to highlight products that support our commitment to help preserve the natural world. Time is fleeting. Learn more


    Carbon Neutral Certified by SCS Global Services means the product’s carbon emissions have been measured and reduced, with any remaining emissions offset.

    Carbon Neutral Certified by SCS Global Services enables companies to demonstrate carbon neutrality for their products by reducing carbon emissions throughout their operations and offsetting their remaining carbon footprint through the purchase of carbon credits. SCS Global Services is a global leader in third-party environmental and sustainability verification, certification, auditing, testing, and standards development. SCS is a chartered Benefit Corporation, reflecting its commitment to socially and environmentally responsible business practices.

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    Customer reviews

    4.3 out of 5 stars
    4.3 out of 5
    681 global ratings

    Top reviews from the United States

    Reviewed in the United States on September 17, 2017
    56 people found this helpful
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    Reviewed in the United States on December 27, 2017
    28 people found this helpful
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    Reviewed in the United States on March 5, 2019
    Customer image
    5.0 out of 5 stars Brilliant mechanical Switch Keyboard
    By Will England on March 5, 2019
    1 Year Later: Absolutely NO flaws. Getting another one for a second desk at work. Getting the 'gaming' model with RGB lighting for the house. The Romer switches are the perfect balance between feel and sound.

    O. M. G. Got in my Logitech K840 keyboard today.

    Absolutely brilliant key feel - anodized brushed aluminum key caps with laser etched letters. New Japanese mechanical switches. Just the right click to know you fired a key press, no louder that a rubber dome Lenovo keyboard. Slightly louder than the $5 Kensington ones they pass out at work.

    But the finish, the quality of this board is an order of magnitude better than the price point. I have found the grail, antd it's is Logitech! Extraordinary price point - a full half less than even the cheapest 'gaming; keyboards without the LED gauche -- very clean and professional looking!

    Please keep in mind, for 34 years I have typed exclusively on IBM Model M keyboards. I learned to type on an IBM Selectric. I learned to code on the OG a Apple mechanical keyboards. I have 10 IBM Model M keyboards in storage, just incase I ever break one. Literally a thousand year supply of Model M keyboards.

    This Logiteck oustrips them all.

    Works just fine on Macintosh, if you can remember the windows key is the Command key in Mac.

    All I wish is it had a Kensignton lock slot on it; I guarantee if I leave this out at work while I'm on vacation it will get 'procured'. Now to find a case big enough to carry it back and forth to home.
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    8 people found this helpful
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    Reviewed in the United States on December 3, 2017
    8 people found this helpful
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    Reviewed in the United States on January 8, 2019
    3 people found this helpful
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    Top reviews from other countries

    David Johnson
    1.0 out of 5 stars Broke after 2 months!
    Reviewed in the United Kingdom on July 15, 2020
    D T
    5.0 out of 5 stars Excellent, affordable gaming keyboard
    Reviewed in Canada on April 7, 2020
    2 people found this helpful
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    Amazon Customer
    2.0 out of 5 stars Plain, and LOUD
    Reviewed in Canada on January 1, 2019
    5 people found this helpful
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    5.0 out of 5 stars Wonderful substitute for Cherry MX browns
    Reviewed in Canada on September 19, 2017
    13 people found this helpful
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    3.0 out of 5 stars So so for gaming, great for typing
    Reviewed in Canada on May 13, 2018
    4 people found this helpful
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