SKU: 54612631573

ErgoSentry: Full-size Merc Stealth replacement

Sale price$240.73 Regular price$267.48
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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For Your Every Summer RSVP, with Code: SUMMER15

Description

ErgoSentry: Full-size Merc Stealth replacementOrders are typically assembled and fulfilled within 2 to 3 weeks, but may take as long as four to six weeks in the event that there is low inventory of the 3D printed of keycaps and case. ErgoSentry combines familiar layout and sculpted keycaps of the Merc Stealth with mechanical switches, high performance electronics, and customizable open source firmware. ErgoSentry is the modern answer to your gaming keyboard needs. For the gaming pad portion only,

Orders are typically assembled and fulfilled within 2 to 3 weeks, but may take as long as four to six weeks in the event that there is low inventory of the 3D printed of keycaps and case.

 

ErgoSentry combines familiar layout and sculpted keycaps of the Merc Stealth with mechanical switches, high-performance electronics, and customizable open source firmware. ErgoSentry is the modern answer to your gaming keyboard needs. For the gaming pad portion only, see ErgoStrafer.

Faithful reproduction of the Merc Stealth gaming pad layout (placement, key shape, and key heights) as well as the same 5, 8, and 11 degree tilt options ensures that ErgoSentry will seamlessly replace the Merc Stealth you've relied on for years. Additional keys like Z, X, and the 3rd number row can further enhance your gaming abilities. Features include:

  • MX-style mechanical switches (brown tactiles, red linears, or your choice of any switch)
  • High performance STM32F411 microcontroller for ultra-fast matrix scanning
  • Integrated USB hub which provides two USB-A ports
  • Integrated USB audio which provides high-fidelity 192kHz/32bits headphone and microphone ports using Cmedia CM6646
  • NKRO (N-key rollover): no limit on how many keys can be pressed at a time
  • Three rotary encoders & knobs with both press and rotate capabilities
  • Added Z and X keys on the gamepad
  • Added a third number row on the gamepad
  • Added a second row of function keys (F13 through F24) on the main keyboard with relegendable keycaps
  • Shine through keycaps (excluding relegendable keycaps)
  • Open source QMK firmware with VIA compatibility gives you full control and easy dynamic key remapping for up to 12 layers, meaning no more issues with driver incompatibilities and proprietary software
  • USB-C connector (USB-A to USB-C cable included)
  • 3D printed gaming pad keycaps and 3D printed case
  • Keycap stickers for the gaming pad keys (except the 3rd number row)
  • Integrated buzzer

Three layouts are available:

    • ErgoSentry ANSI prioritizes minimal desk space with an ANSI layout. This layout and size is most similar to the Merc Stealth; there is no gap around the arrow keys and the numpad "0" is only 1u wide.
    • ErgoSentry Plus ANSI prioritizes the inclusion of additional keys and improved key cluster separation. There is an additional column of keys to the left of the numpad, the numpad 0 is a full 2u wide, and the arrow keys are exploded (there is a gap all the way around them).
    • ErgoSentry Plus ISO is the same as ErgoSentry Plus ANSI, but with a 2u-tall ISO enter key as well as the left shift being split into two smaller keys.

Stabilizers are PCB-mount. They will be clipped and lubricated during assembly.

The PCB uses MX-compatible hotswaps for all the mechanical switches, allowing you to change out the mechanical switches to customize the sound and feel of the keyboard. All keycaps are MX-compatible, so you can change out the main keyboard keycaps as well to suit your preferences.

The USB Audio capability can be fully disabled (e.g. so as to ensure a dedicated sound card takes priority).

The USB Audio mic input can be muted directly within the keyboard itself with no dependency on the operating system. Microsoft Windows does not include a means to globally mute microphone inputs, but being able to mute the microphone input of the keyboard before it even reaches the computer makes it possible to globally mute the microphone input. That is, the microphone mute key works across all applications, including Microsoft Teams, Discord, and Twitch.

Contact us for a custom quote ([email protected]) if you would like a custom configuration built using specific switches, stabilizers, or keycaps. Please note that the installed keycap sets may be different from the ones shown in the photos--if the specific keycaps used are important to you, please contact us prior to ordering.

 

Please understand that delivery timelines are estimates. There are a number of factors that could cause orders to ship sooner or later than estimated dates.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54612631573

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Paige
Charlottesville, US
★★★★★ 5
Definitely worth the price
Size: 6.5, Color: Black/Black
Absolutely love these boots! I originally bought them to wear in NYC in December & they did not disappoint. They were comfortable, cute, durable and worked well in the slush/snow. The traction on the bottom is also nice! They kept me warm with wool socks. I wear them almost daily now. Perfect for everyday. easy to wear with variety of outfits. Good every day shoe.
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Reviewed in the United States on January 3, 2026
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Kimberly
Cuba, US
★★★★★ 5
Snagged a deal
Size: 7, Color: Redwood/Gum 10
I waited and waited to get these boots! I knew I was chancing it, but they went on sale, and I snagged them! I am a size 7, and they fit nicely with socks. a little loose, barefooted, but what psycho wears boots without socks? They are comfortable and really well-made.
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Reviewed in the United States on April 8, 2026
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ashlynnk
Waukegan, US
★★★★★ 4
Cute, comfortable waterproof boots (a little snug to put on)
Size: 7, Color: Velvet Tan/Gum 2
These are really cute Chelsea-style boots and feel very comfortable once they’re on. The waterproof material is great for wet weather and the sole feels sturdy with good traction. They look stylish enough to wear casually but still feel practical for rainy days. The only downside is they can be a little difficult to put on at first because the opening is somewhat snug, but once they’re on they fit well and feel supportive. Overall they’re a great waterproof boot and I’ve enjoyed wearing them.
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Reviewed in the United States on March 17, 2026
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Abby B
Los Angeles, US
★★★★★ 5
Surprisingly great for my wide feet and high instep!
Size: 10.5, Color: Velvet Tan/Gum 2
So thrilled I took a chance on these. Finding boots is impossible for me. I have wide feet, a super high instep, a bunion on one foot, and I wear a hard to find size (10.5). I ordered the 10.5 and 11 in these expecting I might need to size up for width (if I could even get them on). It was a struggle getting the 10.5s on the first time, and once I did they were somewhat uncomfortable on the top of my left foot. But I read that they would relax so decided to give it a go because I need waterproof boots for an upcoming trip and the 11s felt too long. After two days of light wear, they are already breaking in and I have no more discomfort. Getting them on is already easier and they are plenty wide enough and very comfortable to walk in. These are true to size. Super happy and worth a day of mild discomfort to break them in!
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Reviewed in the United States on March 7, 2026
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EE
Los Angeles, US
★★★★★ 5
Comfortable, sturdy, waterproof
Size: 9.5, Color: Black/Black
Loce, love, love these boots. Have walked ten miles with no foot pain around NYC. They go with everything and and are so comfortable. As they are waterproof/resistant, they get a little warm in high temps, but perfect three-season boots.
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Reviewed in the United States on May 17, 2026

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