This classic OLED still delivers stunning color and true blacks, though HDMI 2.0 limits it to 60Hz. All HDMI ports run at 2.0 spec, maxing out at 4K@60Hz — high refresh gaming is off the table here. eARC runs on one input for lossless audio return to a soundbar. Here's every port and the cables you'll need.
2018 LG OLED C8 with α9 Intelligent Processor Gen1. HDMI 2.0 only (pre-HDMI 2.1 era).
Device Information
- Manufacturer
- LG
- Release Year
- 2018
- Model Number
- OLED C8 (e.g., OLED65C8PUA; 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 2.0b (Type A – Standard) | 1 | — | — | HDMI 1 | 4K@60Hz, HDCP 2.2 |
| HDMI 2.0b (Type A – Standard) | 1 | — | — | HDMI 2 | ARC, 4K@60Hz, HDCP 2.2 |
| HDMI 2.0b (Type A – Standard) | 1 | — | — | HDMI 3 | 4K@60Hz, HDCP 2.2 |
| HDMI 2.0b (Type A – Standard) | 1 | — | — | HDMI 4 | 4K@60Hz, HDCP 2.2 |
| USB Type-A (USB 2.0) | 3 | — | — | — | For media playback |
| 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: four HDMI 2.0b ports at up to 4K 60Hz with HDCP 2.2. This is a pre-HDMI 2.1 set, so there is no 4K 120Hz input, no VRR and no eARC; an 18Gbps Premium High Speed HDMI cable is all any port can use. Audio return to a soundbar is plain ARC on one HDMI port, which carries compressed Dolby Digital but not lossless formats such as Dolby TrueHD, and optical out has the same ceiling. USB: 3x USB 2.0 Type-A. HFR support via USB/broadcast only. Composite input needs LG’s breakout adapter. Some ports face straight back toward the wall, so measure plug clearance or use right-angle HDMI plugs before a flush wall mount.
