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The Cable Matters 201478 USB-C KVM Switch launched in June 2026 for a desk with two USB-C laptops, one HDMI monitor, and shared USB devices. Its defining feature is simultaneous laptop charging. It can supply up to 85W to each connected host instead of charging only the computer currently on screen. WorkstationSetup has not tested this switch hands-on, so this review separates published capabilities from behavior that still needs long-term evidence.
Bottom line
Buy it for: Two USB-C laptops that need to stay charged while sharing one 4K@60Hz HDMI monitor and faster USB peripherals.
Skip it for: Dual-monitor desks, 4K@120Hz displays, HDMI-output desktop PCs, USB-C-only monitors, or hosts whose USB-C ports cannot send video.
Main limitation: The hardware covers an unusually useful one-monitor setup, but the recent launch means switching speed and long-term reliability are not yet established.
Cable Matters 201478 Key Specs
| Spec | Cable Matters 201478 |
|---|---|
| Computer inputs | 2 USB-C host ports |
| Host requirement | USB-C or Thunderbolt with DisplayPort Alt Mode video output |
| Display output | 1 HDMI, up to 4K@60Hz |
| Laptop charging | Up to 100W for one host, or up to 85W for each of two hosts |
| Fast shared ports | 2 USB-C 10Gbps and 2 USB-A 10Gbps |
| Keyboard and mouse ports | 2 USB-A 2.0 |
| Switching controls | Front button, RF remote, optional keyboard hotkey, and optional mouse gesture |
| Power adapter | 180W, 20V at 9A |
| Included host cables | 2 USB4 20Gbps USB-C cables, 3.3 feet each |
| Model | 201478 |
Price: $119.99−8%
How I Evaluated It
This is a research-backed review. The physical connections, video limit, charging modes, port speeds, included cables, and switching controls come from Cable Matters' launch announcement, product page, and support documentation. The current retailer listing was checked for the exact model and ASIN.
The review does not treat published maximums as measured results. WorkstationSetup has not timed host switching, measured charging under load, tested storage speed, or assessed heat and reliability over weeks of use. Those gaps matter because the product is new and has little history outside the manufacturer's documentation.
What the Cable Matters 201478 Gets Right
The strongest feature is not the HDMI output. It is the 180W power budget. When both laptops are connected, the switch is rated to deliver up to 85W to each. That can keep a work laptop and a personal laptop powered without leaving a separate charger attached to the inactive computer. If only one host is connected, the published ceiling rises to 100W.
The shared USB layout is also better suited to fast accessories than the low-cost one-monitor KVMs already covered on this site. Two USB-C ports and two USB-A ports are rated for 10Gbps. That gives an external SSD, higher-bandwidth webcam, or capture device a more appropriate connection than a USB 2.0 accessory port. The two slower USB-A ports remain available for a keyboard and mouse. Actual throughput has not been independently measured.
Cable Matters includes the 180W adapter, RF remote, and two 3.3-foot USB4 host cables. Including the host cables removes an important compatibility variable. A replacement cable needs to carry video, data, and Power Delivery, not merely charging.
Four Switching Methods, With One Software Catch
The front button and included RF remote switch the active computer without a driver. Those are the simplest controls and avoid adding software permissions to either host.
Keyboard hotkeys and a mouse-button gesture are optional. Cable Matters requires its local utility for those controls. On macOS 11 or later, the support instructions call for Input Monitoring permission. That permission is not needed to use the physical button or RF remote, so buyers who prefer a hardware-only setup can ignore the utility.
The number of switching methods is useful, but it does not prove that display changes are instant. HDMI monitors often need time to renegotiate a signal when the active host changes. Cable Matters does not publish a measured switching interval, and WorkstationSetup has not measured one.
Where It Falls Short
This is a one-monitor KVM. The single HDMI output tops out at 4K@60Hz. A high-refresh 4K desk is better matched to the MINIX K1, while a two-monitor setup needs a different display path entirely.
Both computers must send video through USB-C or Thunderbolt. A desktop with an HDMI output and an ordinary data-only USB-C port cannot use those two connections as substitutes for a full-featured host cable. The switch also outputs through HDMI, so it is not a direct match for a USB-C-only portable monitor or Apple Studio Display.
Cable length is another constraint. Cable Matters advises using the included 3.3-foot host cables and does not recommend longer replacements. If the computers sit far apart or under the desk, measure the route before buying. Any replacement must support DisplayPort Alt Mode, USB data, and Power Delivery.
The final limitation is evidence. A June 2026 launch has not had much time to build a record for reliability, sleep and wake behavior, monitor resynchronization, or compatibility across laptop models. The specification solves a clear problem, but buyers who need a proven deployment should wait for more history or choose an established alternative.
Cable Matters 201478 vs MINIX K1
| Feature | Cable Matters 201478 | MINIX K1 |
|---|---|---|
| Price | $119.99−8% | $39.90−17% |
| Monitor output | 1 HDMI, up to 4K@60Hz | 1 HDMI, up to 4K@120Hz |
| Charging behavior | Up to 85W to each of two hosts | Charging follows the active host |
| Fast shared USB | 4 ports rated at 10Gbps | None, shared ports are USB 2.0 |
| Switching controls | Button, RF remote, optional software shortcuts | Front button |
| Best fit | Both laptops must remain charged and faster USB matters | High-refresh video, compact size, and simpler hardware matter |
Choose the Cable Matters 201478 when simultaneous charging and faster shared peripherals justify the larger power supply and higher cost. Choose the MINIX K1 when 4K@120Hz support matters more than charging the inactive host or sharing a fast SSD. The full MINIX K1 review covers its port and charging limits.
Cable Matters 201478 vs AV Access iDock C20
These products solve different monitor setups. The Cable Matters 201478 shares one HDMI display and can charge two laptops at up to 85W each. The AV Access iDock C20 shares two HDMI displays between two USB-C laptops and supplies up to 60W to each.
The C20's two-display path uses MST. Windows and Linux hosts with compatible USB-C ports can use two extended screens, but macOS mirrors the two external displays. The Cable Matters model avoids that dual-display compatibility question by supporting only one monitor. Pick based on display count first, then charging power and port needs.
Who Should Buy It
- You switch between two USB-C or Thunderbolt laptops on one HDMI monitor.
- Both laptops need to remain charged while one is inactive.
- You want to share an SSD, webcam, capture device, or another peripheral that can use a 10Gbps port.
- A physical button or RF remote is enough, so the optional shortcut utility is not required.
- Both computers sit within reach of the included 3.3-foot host cables.
Who Should Skip It
- You need two external monitors or 4K above 60Hz.
- One computer only provides HDMI video and lacks a USB-C video output.
- Your monitor accepts USB-C video but has no HDMI input.
- Your laptops must be placed farther away than the included host cables allow.
- You need established evidence for switching time, sleep and wake behavior, heat, or long-term reliability.
Setup Checklist Before You Buy
- Confirm the exact USB-C port on each laptop supports DisplayPort Alt Mode or Thunderbolt video.
- Confirm the monitor has an HDMI input and supports the resolution and refresh rate you plan to use.
- Plan for one monitor only. The switch cannot create a second display output.
- Keep the included USB4 host cables if possible. A charging-only replacement cable will not carry the full connection.
- Decide whether the front button or RF remote is sufficient before installing the optional shortcut utility.
- Connect high-speed devices to the four 10Gbps ports and reserve the USB 2.0 ports for keyboard and mouse.
Frequently Asked Questions
Does the Cable Matters 201478 charge both laptops at once?
Yes. Cable Matters rates the switch for up to 85W to each of two connected laptops. With one host connected, the published maximum is 100W. Actual charging power still depends on the laptop's own charging limit and workload.
Does it support two monitors?
No. The Cable Matters 201478 has one HDMI output and is designed for one shared display. Use a dual-monitor KVM dock when both computers need two external screens.
Can it run 4K at 120Hz?
No. Its published maximum is 4K at 60Hz. The MINIX K1 is the closer one-monitor alternative when 4K@120Hz support matters.
Will it work with a MacBook and a Windows laptop?
Yes, when both computers send video through the USB-C ports used for the host connections. A USB-C connector that supports only charging or data is not enough. The physical button and RF remote do not require a display driver.
Do I have to install the Cable Matters software?
No. The software is optional and enables keyboard hotkeys and the mouse gesture. The front button and RF remote work as hardware controls. On macOS, the optional utility requires Input Monitoring permission.
Can I connect an external SSD to the switch?
The switch provides two USB-C and two USB-A ports rated for 10Gbps, so the connection is designed for faster peripherals. WorkstationSetup has not measured its real transfer speed.
Related Guides
- Best USB-C KVM for Mac and Windows: match the KVM topology to your host pair, display count, and charging needs
- MINIX K1 USB-C KVM Switch Review: the 4K@120Hz alternative for a simpler one-monitor desk
- KVM Switch Setup: Share One Desk, Two Computers: cable order, compatibility checks, and common setup problems
- Best Budget USB-C KVM Switches: lower-cost paths when dual charging and 10Gbps ports are not required
Sources
- Cable Matters June 2026 launch announcement, accessed August 16, 2026
- Cable Matters 201478 product specifications, accessed August 16, 2026
- Cable Matters macOS hotkey support instructions, accessed August 16, 2026