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Manufacturer: TESmart Last updated: September 11, 2026
TESmart HKS0401A1U Review
The TESmart HKS0401A1U is a 4-port HDMI KVM switch offering QHD@144Hz or 4K@60Hz, a USB 3.0 hub, and auto-scan across four connected computers.
TESmart tuned this switch for gamers who run QHD at high refresh rather than 4K at standard rates, letting a 144Hz monitor stay at full refresh when switched to a gaming PC while still supporting 4K@60Hz for productivity machines. Full USB 3.0 hub speed on every port matters for anyone moving files between four machines via an external drive, avoiding the USB 2.0 bottleneck common on budget 4-port switches. Versus the J-Tech Digital JTECH-KV41, that's 4K-only without a high-refresh QHD mode, worth it for buyers who don't game at high refresh. Versus the Lindy 4 Port HDMI 4K60 KVM Switch, that matches USB 3.0 but lacks the QHD@144Hz mode, worth it for buyers not chasing high refresh rates.
High-Refresh QHD for Gaming Rigs
TESmart tuned this switch for gamers who run QHD at high refresh rather than 4K at standard rates, letting a 144Hz monitor stay at full refresh when switched to a gaming PC while still supporting 4K@60Hz for productivity machines.
USB 3.0 Across Four Ports
Full USB 3.0 hub speed on every port matters for anyone moving files between four machines via an external drive, avoiding the USB 2.0 bottleneck common on budget 4-port switches.
Comparison to Alternatives
Versus the J-Tech Digital JTECH-KV41, that's 4K-only without a high-refresh QHD mode, worth it for buyers who don't game at high refresh. Versus the Lindy 4 Port HDMI 4K60 KVM Switch, that matches USB 3.0 but lacks the QHD@144Hz mode, worth it for buyers not chasing high refresh rates.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8 / 10
A 4-port HDMI KVM switch that uniquely offers QHD@144Hz alongside 4K@60Hz, well suited to mixed gaming and productivity setups.
Best for
- Gamers who want high refresh QHD switching alongside standard 4K@60Hz productivity machines.
Not for
- Buyers who only need 4K@60Hz and don't care about high-refresh QHD.
Specifications
What these specs meanHow much this switch can do compared with other desk KVM switches, rated from its specifications.
Topology
| Computers Supported | 4 computers |
|---|---|
| Displays Per Computer | 1 displays |
| Total Video Inputs | 4 |
| Total Video Outputs | 1 |
| Video Path Type | Single head |
| KVM Segment | Desk |
Design
| Port Count | 4 |
|---|---|
| Switching Method | Front-panel buttons, hotkeys, mouse gestures, IR remote, auto-scan |
Video & Features
| Video Standard | HDMI 2.0 |
|---|---|
| Max Resolution | 3840x2160 @ 60Hz |
| Audio Support | Yes |
Video interface
| Video Connector | HDMI |
|---|---|
| Video Interface Version | HDMI 2.0 |
| DisplayPort Link Rate | Not applicable |
Per display capability
| Max Resolution Single Display | 3840x2160 |
|---|---|
| Max Refresh At Max Resolution | 60 Hz |
| Max Refresh At 4K | 60 Hz |
| Max Resolution All Displays Active | 3840x2160 |
| Max Refresh All Displays Active | 60 Hz |
Display continuity
| HDCP Version | 2.2 |
|---|
USB peripheral switching
| USB Switching Speed | USB 2.0 |
|---|---|
| Shared USB Ports | 1 ports |
| Dedicated HID Ports | 2 ports |
Switching control
| Button Switching | Yes |
|---|---|
| Hotkey Switching | Yes |
| Mouse Or Cursor Switching | Yes |
Audio
| Analog Audio Jacks | Yes |
|---|
Physical and power
| External Power Required | Yes |
|---|
In the box and price
| Price | 160 USD |
|---|
FAQs
What are the key specifications of the TESmart HKS0401A1U (HDMI / 4 Computers / QHD 144Hz or 4K@60Hz)?
The TESmart HKS0401A1U (HDMI / 4 Computers / QHD 144Hz or 4K@60Hz) is a KVM switch from TESmart. Key specs: Connection Type HDMI, Port Count 4 computers, 1 monitor, Max Resolution QHD@144Hz or 4K@60Hz, USB Hub Ports USB 3.0.
Who is the TESmart HKS0401A1U (HDMI / 4 Computers / QHD 144Hz or 4K@60Hz) best suited to?
Best suited to: Gamers who want high refresh QHD switching alongside standard 4K@60Hz productivity machines.
What are the drawbacks of the TESmart HKS0401A1U (HDMI / 4 Computers / QHD 144Hz or 4K@60Hz)?
Not the best fit for: Buyers who only need 4K@60Hz and don't care about high-refresh QHD.
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