SKU: 34351515232

ErgoStrafer: Merc Stealth gamepad replacement

Sale price$188.55 Regular price$209.50
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

ErgoStrafer: Merc Stealth gamepad replacementOrders are typically assembled and fulfilled within 2 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. For a full size Merc Stealth replacement, see ErgoSentry Read here to learn more about how we made ErgoStrafer. "It's even better than I expected, a flawless recreation of the Merc Stealth" Doug, patron of the first ErgoStrafer "It's amazing. It has been exceeding every

Orders are typically assembled and fulfilled within 2 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.

 

For a full size Merc Stealth replacement, see ErgoSentry

Read here to learn more about how we made ErgoStrafer.



"It's even better than I expected, a flawless recreation of the Merc Stealth"

-Doug, patron of the first ErgoStrafer

 "It's amazing. It has been exceeding every one of my expectations."

-Joe

 "I am already IN LOVE WITH IT!!! I'm BLOWN AWAY by how good this thing is"

-Steve Sears a.k.a. The Drunken Bard

"Initial impression of build quality is nothing short of amazing."

-Eddie

Imagine the familiar layout and sculpted keycaps of the Merc Stealth, but with mechanical switches, high-performance electronics, and customizable open source firmware. ErgoStrafer is the modern answer to your gaming keyboard needs. 

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 ErgoStrafer will seamlessly replace the Merc Stealth you've relied on for years.

  • Upgraded to use MX-style mechanical switches (brown tactiles, red linears, or your choice of any switch)
  • High performance STM32F411 microcontroller for ultra-fast matrix scanning
  • NKRO (N-key rollover): no limit on how many key can be pressed at a time
  • Optional inclusion of new Z and X keys
  • Up to three rotary encoders & knobs (with both press and rotate capability) can be installed place of the original Load/PrtScr/Save keys
  • Open source QMK firmware with VIA compatibility gives you full control and easy dynamic key remapping for up to 32 layers. No more issues with driver incompatibilities and proprietary software.
  • USB-C connector (USB cable not included)
  • 3D printed keycaps and 3D printed case
  • Includes keycap stickers
  • Integrated buzzer

Mechanical switches are soldered into the PCB. There is no hot swap PCB available because the switches are so close together that there is no room for them.

By default, if one encoder is selected for purchase, we will install it in the Load key location (the top-rightmost switch). If two encoders are selected, we will install the second encoder in the Save key location (two keys below Load). If you would like a different arrangement, just contact us after order placement.

For black keycaps, we include white-on-clear keycap stickers. For white or translucent keycaps, we include black-on-clear keycap stickers.

USB cable available here.

Contact us for a custom quote ([email protected]) if you would like different switches installed (i.e. you ship us switches, or have us order particular switches).

The full range of 3D printable material options can be found here or here.

Additional PCBs, switch plates, keycaps, and keycap stickers available here.



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: 34351515232

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Chelsea, US
★★★★★ 5
Quality
Color: Black
This is by far the best frother I've used. Battery life is great. Its UX is excellent. Feels nice in the hand and has great power. Also like the on/off button as opposed to haveing to hold a switch down. Looking forward to getting their s3 scale.
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Reviewed in the United States on April 11, 2026
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Sonya the vet
Cuba, US
★★★★★ 4
Overall good frother
Color: Black
Bought the Maestri and the Zulay frother to test which one is better since both had good reviews. Returned the Zulay (see Zulay review) and kept the Maestri. Been using it for a few days now and works well. Mixes chai and hot chocolate well. It has one speed that is a good speed to mix, but not so fast that it causes the drink to spill over the top as long as the cup is filled to about 80% full. Because I tend to use the tall 20 oz Contigo autoseal cups, it could benefit from offering longer attachments to reach the bottom of the cup (note: that I did not find any company that offers longer attachment arms).
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Reviewed in the United States on January 28, 2026
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SantaBGirl
Alexandria, US
★★★★★ 5
LOVE this frother and the creamy results!
Color: Black
I LOVE this gadget! And I'm not a gadget person. Since I got it a few days ago, I've switched from using my Nespresso coffee maker, which uses pods and which I really like, to using Starbucks instant coffee packets (cheaper and more environmentally friendly than pods). I put a packet of the coffee and two packets of Equal in a cup, add half and half, then use this frother to mix them. Within a few seconds -- no more than 5, if that -- I have a thick mound of creamy froth. Then I had the water to finish making the coffee. Fantastic. This thing is so easy and fun to use. This is not the cheapest frother available. I wanted a rechargeable unit that has sufficient power to make nice, creamy froth. Also, I didn't want to spend $10 and have the thing break and have to replace it. Reviews suggest the cheaper ones are fine if you don't regularly use a frother. I never used one before and didn't really think I would use it very often. But I like it so much, I've been using it twice a day. Also, I first saw one in use while traveling in India. Another guest at my small hotel had one, which she used to make a latte with rather than drink the rather tepid offering at the more tea-oriented hotel. That's when I decided to get one. I'll be taking it on future trips. Some come with travel containers; this one didn't. The only learning curve was making sure the cup or pitcher for the cream is deap enough not to splash out the cream. I think I'm actually using a little less cream than I used to because the volume increases so much. I use cold cream, not heated (I used to heat it in the microwave when I was using the NesPresso.) I find I like the initial contrast with the cold cream at the top, then I stir it down into the coffee. The Starbucks coffee is excellent. I've used it for iced lattes in the past, so I knew it was good. I can hardly wait for a heat wave to make them with this frother. I did try to beater attachment in eggs when I was making an omelet. Not worth the trouble -- first, the bowl I was using to beat the eggs was too shallow and egg got all over. Second, a fork works just as well. If I were whipping cream, I would definitely use it.
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Reviewed in the United States on March 7, 2026
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Amanda Gilmore
New York, US
★★★★★ 5
Best frother ever
Color: White
This brother is wickedly powerful you don't need to use it for very long to get phenomenal frothing results Incorporates ingredients quickly
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Reviewed in the United States on April 16, 2026
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GoGreen
Los Angeles, US
★★★★★ 5
Works great and so much fun!
Color: Black
How did I live without this for so long? I love this little gadget! It gets used multiple times a day. It's not only great for frothing milk but it will whip eggs for a recipe and stir other ingredients as well. People who have complained that the stirring attachment was missing a piece did not read the description. The picture clearly shows there is no "boot" on that attachment, you don't want that one to spin like the frother. The Frother holds a charge for quite a while as well. I use mine multiple times a day and it is still holding a charge after weeks of daily use. Great item!
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Reviewed in the United States on February 15, 2026

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