€139.13
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Product "Lenkeng LKV683-5.0 HDMI Extender 4K@30Hz up to 120m, Cat6, IR, one-to-many (HDMI-EX-200-4K)"
Lenkeng LKV683-5.0 carries a 4K picture up to 120 metres over ordinary network cable. An HDMI cable itself gets unreliable beyond 10–15 m, while twisted pair is cheap, can be run inside a wall and terminated on site. Through a gigabit switch one transmitter can feed several screens at once.
Key Advantages and Features:
- 4K 30 Hz, backward compatible: Up to 4096 × 2160 @ 24/30 Hz and 1080p at up to 60 Hz — older screens and sources keep working.
- Up to 120 m over Cat6: Cat5 80 m, Cat5e 100 m, Cat6 120 m — one cable from transmitter to receiver.
- One source, several screens: Through a gigabit switch the same picture can feed several receivers (one-to-many, cascaded switches).
- IR passback: The remote control signal (20–60 kHz) travels back along the same cable, so the source can be operated from the screen.
- Firmware upgradable: The micro-USB port is for firmware updates, not power — power comes from the 5 V DC jack.
- Surge protection: Lightning, surge and ESD protection (IEC 61000-4-2) — important when the cable runs a long way along a wall or between buildings.
- Round-the-clock operation: The maker rates it for continuous 24/7 use — suitable for a control room or a signage screen.
- Transmitter and receiver included: Both ends are in the box; nothing extra to buy.
Technical Specifications:
| Parameter | Specification |
|---|---|
| Resolution | 4096 × 2160 @ 24/30 Hz, 3840 × 2160 @ 24/30 Hz, 1080p @ 24/25/30/50/60 Hz |
| Compatibility | HDMI 1.4, HDCP 1.4 |
| Maximum data rate | 10.2 Gbit/s |
| Transmission distance | Cat5 80 m / Cat5e 100 m / Cat6 120 m |
| Latency | 1080p 80–130 ms, 4K@30 Hz 150–220 ms |
| Connection types | one-to-one, one-to-many, cascaded switches |
| Audio | LPCM 2.0 |
| IR | receiving range ≤ 5 m, frequency 20–60 kHz |
| HDMI cable length | ≤ 5 m |
| Housing | aluminium, black |
| Dimensions | 107.3 × 94 × 23.7 mm (transmitter and receiver each) |
| Weight | transmitter 175 g, receiver 170 g |
| Power | 5 V DC / 1 A (two power supplies included) |
| Power consumption | transmitter ≤ 3.5 W, receiver ≤ 2.5 W |
| Working temperature | −20 °C to +60 °C, humidity 0–90 % RH |
Suited to places where the screen is far from the source — a control room, a meeting room, a shop's signage screen or a home cinema projector. The run must be a continuous Cat5e/Cat6 twisted pair; a gigabit switch in between does not disturb the picture.
| HDMI device type: | HDMI extender |
|---|---|
| Product type: | HDMI device |
Lenkeng is a Chinese manufacturer of HDMI extenders and splitters.
They carry an HDMI picture tens of metres over network cable — for example from a recorder to a monitor in another room. The KVM models take keyboard and mouse along too.
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