| Model | HKS0401A2U | HKS0401A1U | HKS0401B1U | HKS0401A30 | HKS0401B40 |
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| Chipset & Compatibility | 2nd Generation Keyboard Testing | 1st Generation Keyboard Testing | 1st Generation Keyboard Testing | 1st Generation Keyboard Testing | 1st Generation Keyboard Testing |
| Connection Type | HDMI 2.0 | HDMI 2.0 | HDMI 2.0 | HDMI 1.4 | Displayport 1.2 |
| Input x Output | 4 x 1 (single monitor, 4 devices) | 4 x 1 (single monitor, 4 devices) | 4 x 1 (single monitor, 4 devices) | 4 x 1 (single monitor, 4 devices) | Multiviewer 4 x 1 (single monitor, 4 devices) |
| Resolution & Refresh Rates |
4K (3840 x 2160) 60hz SUW (5120x1440) 60hz SUW (3840x1080) 60hz UW (3440 x 1440) 60hz UW (2560 x 1080) 60hz QHD (2560 x 1440) 144hz FHD (1920 x 1080) 144hz |
4K (3840 x 2160) 60hz SUW (5120x1440) 60hz SUW (3840x1080) 60hz UW (3440 x 1440) 60hz UW (2560 x 1080) 75hz QHD (2560 x 1440) 60hz FHD (1920 x 1080) 60hz |
4K (3840 x 2160) 60hz SUW (5120x1440) 60hz SUW (3840x1080) 60hz UW (3440 x 1440) 60hz UW (2560 x 1080) 75hz QHD (2560 x 1440) 60hz FHD (1920 x 1080) 60hz |
4K 3840 x 2160 @ 30Hz not recommended not recommended UW (3440 x 1440) 60hz UW (2560 x 1080) 75hz QHD 2560 x 1440 100hz 1920 x 1080 @ 60hz |
4K 3840 x 2160 @ 30Hz not recommended not recommended not recommended not recommended not recommended 1920 x 1080 @ 60hz |
| HDCP / HDR | HDCP 2.2 / HDR 10 | HDCP 2.2 / HDR 10 | HDCP 2.2 / HDR 10 | N/A | N/A |
| # of Ways to Switch | 4 – keyboard, mouse, push button, remote control | 4 – keyboard, mouse, push button, remote control | 4 – keyboard, mouse, push button, remote control | 3 – keyboard, push button, remote control | 4 – keyboard, mouse, push button, remote control |
| Assignable Hotkeys | Scroll Lock or Right-CTRL | Scroll Lock or Right-CTRL | Scroll Lock or Right-CTRL | Scroll Lock | Scroll Lock |
| EDID Emulation (DDM) | ✔ Yes | ✔ Yes | ✔ Yes | ✔ Yes | ✔ Yes |
| Audio Output | HDMI and 1/8” mini jack | HDMI and 1/8” mini jack | HDMI and 1/8” mini jack | HDMI only | HDMI only |
| USB Sharing | ✔ Yes – 1x USB 2.0 (expandable with powered USB hub) | ✔ Yes – 1x USB 2.0 (expandable with powered USB hub) | ✔ Yes – 1x USB 2.0 (expandable with powered USB hub) | ✔ Yes – 1x USB 2.0 (expandable with powered USB hub) | ✔ Yes – 1x USB 2.0 (expandable with powered USB hub) |
| Autoscan | 1 second to 4 minutes | 1 second to 4 minutes | 1 second to 4 minutes | 1 second to 4 minutes | 1 second to 4 minutes |
| Cables Included | 2 KVM Cables (HDMI 2.0 + USB 2.0) | 2 KVM Cables (HDMI 2.0 + USB 2.0) | 2 KVM Cables (HDMI 2.0 + USB 2.0) | 2 KVM Cables (HDMI 2.0 + USB 2.0) | 2 KVM Cables (HDMI 2.0 + USB 2.0) |
| Warranty | ✔ 1-Year manufacturer ✔ 1-Year USA when purchased from BuyTESmart |
✔ 1-Year manufacturer ✔ 1-Year USA when purchased from BuyTESmart |
✔ 1-Year manufacturer ✔ 1-Year USA when purchased from BuyTESmart |
✔ 1-Year manufacturer ✔ 1-Year USA when purchased from BuyTESmart |
✔ 1-Year manufacturer ✔ 1-Year USA when purchased from BuyTESmart |
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