Monoprice Blackbird 4K DisplayPort 1.4 USB 3.0 4x1 KVM Switch
- Computers:
- 4
- Monitors:
- 1
- Video Standard:
- DisplayPort 1.4
- Max Resolution:
- 4096x2160 @ 60Hz
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Manufacturer: Monoprice Last updated: September 15, 2026
Where to buy
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Monoprice Blackbird 4K DisplayPort 1.4 USB 3.0 4x1 KVM Switch Review
The Monoprice Blackbird 4K DisplayPort 1.4 USB 3.0 4x1 KVM Switch shares one monitor between 4 computers at 4K@60Hz with HDR and full 4:4:4 chroma.
This is the 4-computer step-up from Monoprice's 2x1 DisplayPort switch, same chroma fidelity, HDR, and switching flexibility (button, IR remote, hotkey, mouse traverse), just scaled to four sources sharing one display. It's the right call for a workstation with a primary PC plus a few secondary boxes (a test rig, a NAS console, a lab machine) that all need occasional access to one monitor and one set of peripherals.
Four Sources, One Monitor
Ideal for a desk with a main PC plus several secondary machines that only need occasional keyboard/monitor access, rather than four full-time daily-driver computers.
Same Switching Flexibility as the 2x1
Button, IR remote, hotkey sequences, and mouse traverse switching carry over unchanged from the smaller 2x1 model, just with two more inputs to cycle through.
Specifications
Design
| Port Count | 4 |
|---|---|
| Switching Method | Front-panel buttons, IR remote, hotkey, mouse traverse, USB port detection |
Topology
| Computers Supported | 4 computers |
|---|---|
| Displays Per Computer | 1 displays |
| KVM Segment | Desk |
Video & Features
| Video Standard | DisplayPort |
|---|---|
| Max Resolution | 4096x2160 @ 60Hz |
| USB Hub Ports | 2 |
| Audio Support | Yes |
Video interface
| Video Connector | DisplayPort |
|---|---|
| Video Interface Version | DisplayPort 1.4 |
| DisplayPort Link Rate | HBR3 |
Per display capability
| Max Refresh At Max Resolution | 60 Hz |
|---|---|
| Max Refresh At 4K | 60 Hz |
Display continuity
| HDCP Version | 2.2 |
|---|---|
| HDR Passthrough | Yes |
USB peripheral switching
| USB Switching Speed | USB 3.0 5Gbps |
|---|---|
| Dedicated HID Ports | 2 ports |
Switching control
| Button Switching | Yes |
|---|---|
| Hotkey Switching | Yes |
| Wired Remote Included | No |
| Mouse Or Cursor Switching | Yes |
Audio
| Analog Audio Jacks | Yes |
|---|
Physical and power
| Rack Mountable | Yes |
|---|---|
| External Power Required | Yes |
In the box and price
| USB Host Cables Included | 4 cables |
|---|---|
| Price | 158.00 USD |
| Brand | Monoprice |
|---|---|
| Model | 42646 |
| Power | DC adapter (5VDC/3A, 100-240VAC input, up to 11.75W) |
| Included Cables | 4x USB 3.0 Type-A to Type-B cables, AC power adapter, IR remote and receiver, rackmount ears |
| Dimensions | 9.6 x 3.0 x 1.0 in (243 x 75 x 26 mm) |
| USB-C Power Delivery | No |
| Spec Score | 6.0 |
| Source URL | https://downloads.monoprice.com/files/manuals/42646_Manual_201209.pdf |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Multi-computer benches needing 4 DisplayPort sources sharing one monitor with full HDR/4:4:4 fidelity.
Not for
- Buyers who only need 2 inputs, who'd save money with the 2x1 DisplayPort model instead.
FAQs
What are the key specifications of the Monoprice Blackbird 4K DisplayPort 1.4 USB 3.0 4x1 KVM Switch?
The Monoprice Blackbird 4K DisplayPort 1.4 USB 3.0 4x1 KVM Switch is a KVM switch from Monoprice. Key specs: Computers 4, Monitors 1, Video Standard DisplayPort, Video Version DisplayPort 1.4, Max Resolution 4K@60Hz (3840/4096 x 2160p@60Hz), YCbCr 4:4:4, HDR.
Who is the Monoprice Blackbird 4K DisplayPort 1.4 USB 3.0 4x1 KVM Switch best suited to?
It suits multi-computer benches needing 4 displayport sources sharing one monitor with full hdr/4:4:4 fidelity..
What are the drawbacks of the Monoprice Blackbird 4K DisplayPort 1.4 USB 3.0 4x1 KVM Switch?
It is a poor fit for buyers who only need 2 inputs, who'd save money with the 2x1 displayport model instead..
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