Crab Broom – Ferris Sweep Aluminum Case & Keyboard Kit
Best premium housing for ergonomic split keyboard enthusiasts on the go.
The Crab Broom is the exclusive CNC aluminum case for the Ferris Sweep, a highly ergonomic 30% split keyboard. This kit enables a minimalist, travel-friendly build with 34 keys and a low-profile, columnar-staggered layout. It supports diode-less PCBs and Kailh Choc V1 switches, offering native tenting compatibility with Manfrotto tripods or optional Booster Pack legs for personalized comfort. Crafted for a refined typing experience, it's the ultimate option for assembling this unique split keyboard.
$124.00
Owner Satisfaction
4.7
/ 5
Category Rank
98
/ 1064
#98 in Input Device Accessories
Price vs Category Average
+280%
Above average
Layout
5323430
/ x + thumb keys per half (-key %)
Who it's for
- Minimalists and travelers needing a compact, high-performance setup
- Typists seeking a durable, premium-feeling desktop centerpiece
- Ergonomics-focused users aiming to reduce wrist and finger strain
Who should skip it
- Budget-conscious buyers seeking value over premium materials
- Users unwilling to master complex custom key layers
- Beginners preferring a ready-to-use, pre-assembled keyboard
Performance breakdown
Build Integrity
CNC aluminum construction provides a premium, rigid foundation for daily typing.
Ergonomic Versatility
Flexible tenting options allow for a highly personalized and comfortable posture.
Portability
Ultra-thin profile makes this an ideal companion for mobile workstation setups.
Assembly Complexity
Requires technical proficiency to assemble the diode-less PCB and switch configuration.
Switch Compatibility
Strictly limited to Choc V1 switches, narrowing your customization choices.
Aesthetic Minimalism
Clean, branding-free design offers a sophisticated look for any desk.
Key Specs
Layout
5x3 + 2 thumb keys per half (34-key 30%)
Switch Type
Kailh Choc V1 (Low Profile/LP)
Material
CNC Aluminum
Compatibility
Choc-spaced Ferris Sweep PCBs only
Connection Type
Wired (USB-C interface)
Tenting
Compatible with Manfrotto tripod or Booster Packs
Key Count
34 keys
Dimensions
Extremely slim profile
Features
- Durable, ultra-thin CNC aluminum case
- Supports tripod and leg tenting options
- Designed for low-profile Choc V1 switches
- Minimalist design with no external branding
- Enables a highly ergonomic split layout
- Supports diode-less PCB configurations
- Travel-friendly and compact design
- Refined build for a unique keyboard
What customers say
The Crab Broom kit is overwhelmingly praised as a premium upgrade for the Ferris Sweep keyboard. Reviewers consistently highlight the exceptional build quality of the aluminum case, noting its satisfying heft and flawless finish. This component elevates the minimalist design into a luxurious centerpiece, offering a significant acoustic and tactile improvement over standard enclosures. While assembly is complex, users find the final result immensely rewarding. Despite the high price, enthusiasts feel the unparalleled quality and aesthetic appeal justify the investment for dedicated split keyboard users. It is celebrated as a highly desirable, portable grail item for those seeking the ultimate iteration of this ergonomic layout.
Know before you buy
The Crab Broom is designed exclusively for Kailh Choc V1 low-profile mechanical switches. It is not compatible with standard MX-style switches or other Choc variants.
No, the Crab Broom is a CNC aluminum case kit. You will need to source a compatible diode-less Ferris Sweep PCB and the necessary switches and keycaps separately to complete your build.
The case features native support for Manfrotto tripod mounts, allowing you to attach the keyboard halves to a tripod for adjustable angles. Alternatively, you can use the optional Booster Pack legs to achieve a fixed tented typing position.
The Ferris Sweep features a 34-key, 30% layout, which is highly minimalist and requires a significant learning curve regarding keymap customization. It is best suited for experienced users who are already comfortable with extreme layers and small-form-factor keyboards.
While the Ferris Sweep PCB typically uses a wired USB-C connection, the case is designed to accommodate the physical footprint of the build. Please verify that your specific PCB choice supports wireless functionality if that is a requirement for your setup.
The CNC aluminum case provides a significantly more rigid, premium typing feel and added durability compared to 3D-printed alternatives. It also offers a slimmer, more refined aesthetic that is ideal for travel and long-term daily use.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$124