Component retailers with custom keyboard compatibility matrices
Jul 20 – Oct 25, 2026Updated Oct 25, 2026
Reviewed by Dimitry Apollonsky
Which brands AI mentions
Mentioned in
ChatGPTChatGPTGoogle AI ModeGoogle AI Mode
- #1KBDfansChatGPT 100%Google AI Mode 100%
- #2CannonKeysChatGPT 95%Google AI Mode 68%
- #3tiedDivinikeyChatGPT 81%Google AI Mode 26%
- #3tiedNovelKeysChatGPT 62%Google AI Mode 42%
- #3tiedKeebs For AllChatGPT 52%Google AI Mode 32%
Questions and answers
ChatGPTOct 25, 2026
The most reliable sources are generally keyboard component retailers and designers that publish model-specific compatibility notes, PCB/plate drawings, and explicit case-fit information—rather than stores that merely label parts “60%,” “65%,” or “MX-compatible.”
One important distinction: there isn't a universal compatibility standard for custom keyboard cases, PCBs, and plates, even when two products share the same layout size. The best evidence is a compatibility list for the exact product revision, backed by dimensional drawings where possible.
Retailers and component sources worth checking
1. CannonKeys
(Best for technical documentation)
Publishes build guides, plate files, and STEP models for selected PCBs. Its guides document details that can be easy to miss, including daughterboards, gasket assemblies, and stabilizer requirements. For example, the Bakeneko requires clip-in stabilizers because screw-in versions interfere with its O-ring.
Best for: designer-specific fit, mounting details, replacement plates and PCBs.
Documentation and compatibility resources
2. KBDfans
(Best for cross-compatible parts)
Some product listings explicitly name compatible PCB families and identify the case's mounting style. The Holy60, for instance, lists compatibility with DZ60 variants, GH60 and Wooting 60HE PCBs. Individual kit listings also identify plate, PCB and stabilizer options.
Caveat: confirm the exact PCB revision, connector clearance, plate and layout before assuming compatibility.
Holy60 specifications and compatibility example
3. 1upkeyboards
Best for: plate and layout options.
Its DIY 60% ISO plate listing specifies PCB-mounted stabilizer compatibility and provides options for ANSI, ISO and HHKB-style plates. It also calls out the 7U spacebar required by the Tsangan layout.
DIY 60% ISO plate and selectable components
4. Bowl Keyboards
Best for: mounting-style and layout-specific compatibility.
The Vella product page distinguishes 6.25U and 7U PCB configurations and documents gummy O-ring mounting. It also identifies supported case configurations and compatible PCB families.
Vella case and PCB compatibility
5. KBD Lab
Best for: comparing stabilizer specifications across vendors.
Its stabilizer catalog compares mounting styles, wire sizes, prices, vendors and stock. It is useful for narrowing down candidates, although it is a comparison resource rather than a substitute for the PCB or plate manufacturer's fit documentation.
What makes a compatibility matrix genuinely reliable?
When evaluating a retailer, look for these five groups of specifications.
Interface Evidence to look for Case ↔ PCB Named compatible PCB models and revisions, mounting-hole positions, USB cutout and daughterboard clearance PCB ↔ plate Matching switch coordinates, plate cutouts, supported layouts and mounting tabs PCB/plate ↔ stabilizers PCB-mount versus plate-mount, screw-in versus clip-in, and support for each key position Mounting style Explicit tray, top, gasket, O-ring or other mounting design, with relevant mounting hardware Layout ↔ keycaps ANSI/ISO, split shifts, split backspace, 6.25U/7U spacebar and bottom-row sizes These checks are consistent with the engineering details in the PCB compatibility guidance from HilPCB and the practical checklist published by KBD Lab.
My recommendation
- For the strongest engineering evidence: start with CannonKeys, particularly its published mechanical files.
- For a broader selection of interchangeable parts: check KBDfans, but verify each product's exact compatibility claims.
- For plates and stabilizers: use 1upkeyboards and KBD Lab as supplementary resources.
- For unusual mounting systems: prioritize the original keyboard designer's documentation, as illustrated by Bowl Keyboards.
One final caution: a retailer saying that a PCB fits a particular case does not automatically mean a third-party plate, foam kit or stabilizer set will fit too. Treat compatibility as a chain of individually verified interfaces, not a single yes/no property.
Sources cited in this answer15
- kbdlab.ioMechanical Keyboard Compatibility Checklist | KBD Lab
- hilpcb.com60% Keyboard PCB Design and Manufacturing Guide
- docs.cannonkeys.comResources - CannonKeys Documentation
- docs.cannonkeys.comBakeneko Build Guide - CannonKeys Documentation
- docs.cannonkeys.comResources - CannonKeys Documentation
- kbdfans.comHoly60 Keyboard with PBTfans Klein Blue R3 – KBDfans® Mechanical Keyboards Store
Google AI ModeOct 25, 2026
Unlike PC component building, the custom mechanical keyboard hobby rarely uses universal parts . Most cases, plates, PCBs, and mounting styles are proprietary to specific board designs or group buys rather than cross-compatible. Consequently,
individual storefrontsrarely publish an expansive, cross-brand "matrix" because parts outside their own product ecosystem won't fit together mechanically.However, reliable interactive tools, community databases, and vendor documentation help map out custom keyboard compatibility:
Dedicated Compatibility Tools & Databases
- Keyboard Part Picker : An interactive tool created specifically to filter and cross-check custom mechanical keyboard parts (cases, PCBs, plates) for direct build compatibility.
- Keeb Finder : A comprehensive aggregator and filter database designed to sort keyboard kits, components, layouts, and specifications across multiple vendors.
- Keyboard University : While not a retail database, this serves as the definitive educational resource for understanding how mounting styles (tray, gasket, top, bottom, integrated) interact mechanically with plates and PCBs.
Major Retailers with Robust Product-Specific Documentation
- KBDfans : Publishes extensive technical reference guides, material breakdowns, and explicit component cross-compatibility notes (such as PCB layout files and specific plate/case matching) on their product pages and KBDfans Blog Guides.
- CannonKeys : Known for clear, strict compatibility specs listed directly on individual product and replacement-part pages, detailing exactly which solder/hot-swap PCBs fit specific proprietary cases and plate materials.
- Divinikey : Frequently details precise fitment data—especially for stabilizers (PCB-mount vs. plate-mount screw-in/clip-in variations) and switches—reducing guesswork when pairing components.
If you have a specific keyboard model, layout size (e.g., 60%, 65%, TKL), or mounting style in mind, let me know and I can help you verify which replacement plates, PCBs, or stabilizers are known to fit it.
Sources cited in this answer5
- reddit.comIs there a "PC Parts Picker" for mechanical keyboards? - Reddit
- keyboardpartpicker.ioKeyboard Part Picker | Build Your Mechanical Keyboard
- keebtalk.comWebsite for easy filtering and comparing keyboards and keycap sets. I need your help! - Community / General - KeebTalk
- codershaven.comUltimate Keyboard Master Reference - Coder's Haven
- kbdfans.comMechanical Keyboard Materials & Sound Guide | KBDfans – KBDfans® Mechanical Keyboards Store
Google AI ModeOct 15, 2026
There is no single universal "PCPartPicker" for custom mechanical keyboards , and standalone retailers rarely host expansive master cross-compatibility charts because most 65%, 75%, and TKL parts are proprietary to specific case designs. However, standard 60% components share general universal standoffs, and a few community-trusted vendors and tool platforms provide reliable guidance, explicit component notes, or cross-referencing capabilities.
Retailers and Tools with Reliable Guidance
- Keyboard Part Picker : Though an independent community database rather than a direct storefront, this tool functions as the closest equivalent to a compatibility engine, helping cross-reference layouts, form factors, and footprints.
- KBDFans : Known for stocking extensive standardized 60% ecosystem components (like DZ60 PCBs and compatible generic cases/plates), their product listings explicitly detail standoff placements, USB-C port locations, and layout support notes.
- KeebsForAll : Features comprehensive building guides and structured product descriptions that explicitly outline mounting styles, stabilizer requirements (PCB screw-in vs. plate-mount), and plate material flex tolerances.
- NovelKeys : Renowned for selling tightly integrated kits or clearly documenting precise PCB/plate specifications on individual product pages to eliminate guesswork on proprietary layouts.
General Compatibility Rules of Thumb
- 60% Standardisation : Universal 60% standard tray-mount cases, GH60-style PCBs, and standard 60% plates generally cross-fit across brands because screw standoff locations match.
- 65% and Larger : Non-60% layouts (65%, 75%, TKL) are almost never cross-compatible between different manufacturers. You must buy the PCB, plate, and case as a unified kit or directly from the same brand family.
- Stabilizers : Always verify whether your PCB supports screw-in/clip-in PCB-mounted stabilizers or if the plate requires snap-in plate-mounted stabilizers, as they are mutually exclusive.
If you have a specific keyboard layout or model in mind (such as a 60% tray-mount or a specific 75% board), let me know and I can help you verify what components will fit safely together.
Sources cited in this answer4
ChatGPTOct 15, 2026
For custom mechanical keyboard parts, I’d prioritize retailers that publish model-specific compatibility notes, PCB and plate layout drawings, mounting specifications, and build guides rather than relying on product titles like “60% compatible.”
These are the strongest places to start, based on the quality of their published documentation and the kinds of compatibility information they provide.
Best keyboard parts retailers for compatibility guides
1. KBDfans
(Best overall starting point)
KBDfans publishes product-specific PCB layout diagrams, plate options, kit contents, and technical warnings. Its guides also explain how materials, mounting styles, stabilizers, and keycap layouts affect a build.
Best for: DIY keyboard kits, cases, PCBs, plates, and keycap compatibility.
2. CannonKeys
(Best technical documentation)
CannonKeys has dedicated documentation pages with build instructions, lists of required hardware, PCB design files, and plate files for supported models. Its Bakeneko guide even specifies which stabilizer mounting style is required and why.
Best for: Matching parts to a specific keyboard design and verifying mounting details before buying.
3. Keebio
Keebio states that each keyboard product page has a Design & Compatibility section explaining which parts work with that board. It also provides step-by-step assembly documentation and distinguishes switch standards used across its product families.
Best for: Split and ergonomic keyboards, PCB-specific builds, and beginners who want explicit compatibility guidance.
4. Divinikey
Best for comparing individual components
Divinikey has dedicated categories for PCBs, plates, cases, and stabilizers, with useful variant-level details such as PCB thickness, wire sizes, and mounting styles. Its product selection is broad, though documentation varies by item.
5. NovelKeys
Best for specific product specifications
NovelKeys product pages can be detailed about PCB layouts, switch pin compatibility, included stabilizers, and plate-specific fitment. Its NK87 plate listing, for example, warns about potential fitment issues with foam designed for different plate materials. Some older products are archived, so verify availability.
Which retailer should you trust for each part?
Component Best starting point What to look for PCB ↔ case CannonKeys, Keebio Mounting-hole drawings, USB clearance, exact board model PCB ↔ plate KBDfans, CannonKeys Matching layout diagrams and plate files Stabilizers CannonKeys, Divinikey PCB-mount vs. plate-mount, wire length, PCB thickness Complete DIY kits KBDfans, Keebio Explicit list of included parts and supported variants One important caveat
A retailer can have excellent documentation without offering a universal compatibility chart. Many custom keyboard parts are proprietary or revision-specific, so a shared size label like “65%” does not guarantee that a PCB, case, and plate will fit together. The KBD Lab compatibility checklist is also a useful independent reference for checking these interfaces.
My recommendation: start with KBDfans and CannonKeys for documented DIY builds, then use Keebio if you're interested in split or ergonomic layouts. Treat Divinikey and NovelKeys as useful additional sources for individual components.
Are you building a standard 60%, 65%, or 75% keyboard, or a split/ergonomic board? I can narrow this down to retailers with the most useful compatibility charts for that particular format.
Sources cited in this answer20
- kbdfans.comAgar
- kbdfans.comMechanical Keyboard Materials & Sound Guide | KBDfans – KBDfans® Mechanical Keyboards Store
- kbdfans.comRead the PBTfans compatibility guide
- kbdfans.comKBDfans – KBDfans® Mechanical Keyboards Store
- docs.cannonkeys.comResources - CannonKeys Documentation
- docs.cannonkeys.comBakeneko Build Guide - CannonKeys Documentation
Also asked as
- I'm looking for keyboard component shops that offer clear compatibility guides for PCBs, plates, cases, stabilizers, and mounting styles. Which ones are known for being accurate?