The Framework Expansion Card is one of the few laptop accessory formats that has turned into a small ecosystem of its own: a standard-sized slot module with a USB-C connection at one end. HW Media Lab's DockFrame takes that format off the laptop and builds a desktop USB Type-C hub around it. It then adds a set of "Tool Cards" that turn the hub into a compact electronics bench: a multimeter, an adjustable power supply, a breadboard card built around a Seeed XIAO module, and a small USB hub card.
The project is now crowdfunding on Crowd Supply. It is not shipping and it is not a retail pre-order. When PinoutFeed read the campaign page, it showed $1,623 raised of a $50,000 goal (3% funded) from 6 backers, with 77 days left. Funding ends January 15, 2027 at 04:49 AM PST, and pledge levels run from US$119 to US$399. The hardware is still at the prototype stage. HW Media Lab says the enclosure's production method, colors and dimensions are still being finalized.
Below are the main questions a buyer would ask, answered from the campaign page itself. Where independent coverage disagrees with it, that is noted.
What exactly is the hub?
The Crowd Supply page describes the DockFrame hub as having seven USB-C connectors. Five are card-side positions where Expansion Cards or Tool Cards plug in, one is the upstream connector to the host, and one is a separate Supercharger input. The page notes that not all seven carry USB data. It details these connector types:
- Card-side PD connector: USB data up to 10 Gbps, and the input point for up to 100 W of USB Power Delivery. A charger and a card cannot occupy it at the same time.
- Two Data connectors: 10 Gbps each, with 7.5 W supplied per port.
- One USB/DisplayPort connector: 10 Gbps, DisplayPort Alt Mode up to 4K at 60 Hz, and 7.5 W output. Simultaneous video and data performance is still to be validated.
- Host upstream: up to 10 Gbps to the computer, and it can charge the host at up to 60 W. Downstream USB connections share that data link and the main power budget.
- Supercharger output: a separate, isolated 1:1 power passthrough of up to 240 W, fed from a USB PD 3.1 EPR source on the Supercharger input, alongside USB data.
The 240 W path deserves a closer look. According to the campaign, it is a separate isolated passthrough from its own EPR input, and it does not add to laptop charging or raise a card's own limits. The 7.5 W figures on the Data and DisplayPort connectors mean those positions suit low-power cards and peripherals, not charging.
How many slots are there? The sources disagree
Coverage of DockFrame has not agreed on the basic layout. It's FOSS describes four open slots on a USB 3.2 hub with PD passthrough up to 100 W downstream. Earlier prototype coverage by Liliputing (via Tom's Hardware) also said the dock holds up to four cards. The Crowd Supply campaign page, which is HW Media Lab's own listing, specifies five card-side positions. PinoutFeed treats the campaign page as authoritative, since it is the specification backers are pledging against. The difference may reflect design changes between the early prototype and the campaign build.
What do the Tool Cards actually do?
Multimeter Card
The Multimeter Card is built around an ESP32-S3 and uses 4 mm banana jacks. Crowd Supply lists these ranges:
- DC voltage and current: ±60 V and 2 A
- AC: 60 V peak and 2 A peak
- Resistance: 49 Ω to 3.2 MΩ
The card has what the campaign calls functional galvanic isolation between USB and the measurement circuit, and HW Media Lab states plainly that it has no mains or CAT rating and must never be connected to mains. That matters. The campaign describes the isolation as designed to break ground loops and help protect the USB host. It does not establish a dielectric-withstand, safety or CAT rating. The 60 V ceiling and the missing CAT rating make this a low-voltage bench instrument for logic boards and power rails. It does not replace a rated handheld meter for anything connected to the wall. The campaign also lists capacitance and inductance measurement, and It's FOSS adds that the card reads DC and AC voltage, current and continuity.
Power Supply Card
The Power Supply Card is an adjustable 0.8-20 V supply rated up to 3 A, according to Crowd Supply, which notes that continuous output is thermally limited. It takes its input from USB PD. It's FOSS describes it as a programmable buck-boost design with a USB PD input of up to 100 W. You control it from a browser over USB, BLE or Wi-Fi. At up to 3 A, the top of its range suits many microcontroller boards, small motor drivers on the bench and LED strips. Real output will of course depend on the PD source feeding the hub.
BreadBoard Card
The BreadBoard Card is a USB Type-C carrier supplied with a removable Seeed Studio XIAO ESP32-C5 module and antenna; the carrier PCB itself has no integrated MCU or radio. It brings the module out to 8 rows of 0.1-inch headers for breadboard insertion, and the page says it accepts compatible XIAO-format modules, with a warning to check pinout, power requirements and mechanical fit before substituting one. In practice, a thumb-sized dev board plugs straight into the hub, powered and connected over the same USB-C link as everything else.
Mini Hub Card
The Mini Hub Card uses a GL3523 controller. It provides two downstream USB 3.0 ports sharing one 5 Gbps SuperSpeed upstream link, on a six-layer PCB. It's FOSS calls it a four-port Mini Hub. Crowd Supply's spec says two ports, and that is the figure we use here. Both downstream ports share the single 5 Gbps uplink, so bandwidth is split, not doubled.
Software, licensing and openness
The Multimeter and Power Supply Cards are controlled through browser apps over USB or Bluetooth LE, and the campaign says no dedicated desktop or mobile app is required. For makers who move between Linux, macOS and Windows machines, that avoids a driver-and-installer problem. It does tie the tools to browser-based device access.
On licensing, HW Media Lab says the hardware will be released under CERN-OHL-S (the strongly reciprocal variant of the CERN Open Hardware Licence) and the firmware under the MIT license. The design files will be published after the campaign, not now. Anyone backing the project for its open-hardware status should note that the files are promised, not yet available.
It's FOSS reports an injection-molded translucent case with support for Framework Desktop Tiles, a LEGO-compatible stud grid, and screws rather than glue for repairability. The campaign page says the enclosure's production method, colors and dimensions are still being finalized, so treat these case details as the current plan, not a fixed spec.
Does HW Media Lab have a track record?
Some. According to It's FOSS, the company's first product, WebScreen, asked for $5,250 on Crowd Supply and raised $10,718. DockFrame is a much larger project. The $50,000 goal is nearly ten times WebScreen's target, and it has more hardware to bring to production: a multi-connector hub plus four distinct cards. With 77 days left at the time of reading, the campaign had covered 3% of its goal.
What It Means for Makers
DockFrame is aimed at a specific person: someone who already owns or likes Framework Expansion Cards, works mostly at a laptop, and wants a small set of low-voltage bench tools that live on the same USB-C hub as the display, storage and peripherals. If that is you, the Tool Cards could replace a cheap USB bench supply, a basic DMM for logic-level work and a loose dev board on a breadboard, all in one desk footprint controlled from a browser tab.
It is not a substitute for proper bench instruments in every case. The Multimeter Card's ±60 V DC range and its explicit lack of any mains or CAT rating rule it out for line-voltage work. The 0.8-20 V, 3 A Power Supply Card covers typical embedded rails but not higher-voltage or high-current loads. Earlier prototype coverage noted the dock works with any PC that has a USB Type-C port, with USB4 or Thunderbolt hosts preferred for SSD use.
On price and availability: DockFrame is crowdfunding on Crowd Supply, with pledge levels from US$119 to US$399 as listed on the campaign page when PinoutFeed read it. Funding closes January 15, 2027. The hardware is a prototype, the enclosure is not final, and the CERN-OHL-S hardware files and MIT-licensed firmware are scheduled for release after the campaign ends. As with any crowdfunded hardware, backers are funding a development and production run, not buying a finished product.
