This classic OLED still delivers stunning color and true blacks. All four HDMI ports support full 2.1 specs (48Gbps), enabling 4K@120Hz, VRR, and ALLM on any input. eARC runs on HDMI 2 for lossless audio return to a soundbar. For the 2.1 ports, use Ultra High Speed HDMI cables — standard cables top out at 18Gbps. Here's every port and the cables you'll need.
2019 LG OLED C9 with α9 AI Processor Gen2, first consumer TV with full HDMI 2.1 48Gbps. Legendary for gaming.
Device Information
- Manufacturer
- LG
- Release Year
- 2019
- Model Number
- OLED C9 (e.g., OLED65C9PUA; sizes 55/65/77 available)
- Category
- TV
Source: manufacturer product page · Last updated: · How we verify port data →
Available Ports
| Connector | Quantity | Power (PD) | Capabilities | Label | Notes |
|---|---|---|---|---|---|
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 1 | 48Gbps, 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 2 | eARC, 48Gbps, 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 3 | 48Gbps, 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 4 | 48Gbps, 4K@120Hz, VRR, ALLM |
| USB Type-A (USB 2.0) | 3 | — | — | — | For media playback and peripherals |
| Optical TOSLINK (S/PDIF) | 1 | — | — | — | Digital audio output |
| RJ-45 (100BASE-TX Fast Ethernet) | 1 | — | — | — | 10/100 Mbps: LG specifies 10BASE-T/100BASE-TX for webOS TVs, so wired tops out around 94 Mbps |
| 3.5mm TRS (Stereo Audio) | 1 | — | — | — | Headphone output |
| Composite Video (RCA) | 1 | — | — | — | Via included adapter dongle |
| RF Antenna Input (Coaxial) | 1 | — | — | — | Antenna/cable |
Other LG TV models with the same ports
Notes & Compatibility
HDMI: 4x HDMI 2.1 (48Gbps full bandwidth, 4K@120Hz, VRR, ALLM). eARC: HDMI 2. USB: 3x USB 2.0 Type-A. DTS supported. G-Sync Compatible via firmware. One HDMI input is on the rear and three on the side; USB is 2 rear + 1 side, Ethernet on the rear. LG lists a DTS-HD decoder and Dolby Atmos, with Dolby Vision, HDR10 and HLG for HDR. Bluetooth 5.0 handles wireless headphones alongside the wired 3.5mm out.
Common questions
How many ports does the LG OLED C9 55-77" OLED (2019) have?
The LG OLED C9 55-77" OLED (2019) has 12 ports in total: 4 × HDMI 2.1 (Type A – Standard), 3 × USB Type-A (USB 2.0), 1 × Optical TOSLINK (S/PDIF), 1 × RJ-45 (100BASE-TX Fast Ethernet), 1 × 3.5mm TRS (Stereo Audio), 1 × Composite Video (RCA) and 1 × RF Antenna Input (Coaxial).
What kinds of ports does the LG OLED C9 55-77" OLED (2019) have?
By connector family, the LG OLED C9 55-77" OLED (2019) has 4 HDMI, 3 USB, 2 Audio, 2 Video (Legacy) and 1 Network.
How many USB ports does the LG OLED C9 55-77" OLED (2019) have?
The LG OLED C9 55-77" OLED (2019) has 3 USB ports: 3 × USB Type-A (USB 2.0).
What video connections does the LG OLED C9 55-77" OLED (2019) have?
The LG OLED C9 55-77" OLED (2019) has 6 ports that can carry video: 4 × HDMI 2.1 (Type A – Standard), 1 × Composite Video (RCA) and 1 × RF Antenna Input (Coaxial).
