This older OLED generation offers pixel-perfect contrast and black levels, but needs a modern receiver for gaming. 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 entry-level OLED B9 with α7 AI Processor Gen2, HDMI 2.1 on all 4 ports.
Device Information
- Manufacturer
- LG
- Release Year
- 2019
- Model Number
- OLED B9 (e.g., OLED65B9PUA; sizes 55/65 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) | 1 | — | — | — | — |
| USB Type-A (USB 2.0) | 2 | — | — | — | For 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, 4K@120Hz, VRR, ALLM). eARC: HDMI 2. USB: 3x USB 2.0. DTS supported. Placement matters on a wall mount: LG lists the four HDMI inputs as one rear and three side, and the three USB ports as two rear and one side, so right-angle HDMI plugs are often the tidier buy. Multichannel PCM over eARC did not work on LG’s 2019 sets at launch and was only fixed by firmware in June 2020 — check the update state on a second-hand set before blaming the cable. G-Sync compatibility also arrived by firmware from November 2019 rather than in the box.
Common questions
How many ports does the LG OLED B9 55-65" OLED (2019) have?
The LG OLED B9 55-65" 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 B9 55-65" OLED (2019) have?
By connector family, the LG OLED B9 55-65" OLED (2019) has 4 HDMI, 3 USB, 2 Audio, 2 Video (Legacy) and 1 Network.
How many USB ports does the LG OLED B9 55-65" OLED (2019) have?
The LG OLED B9 55-65" OLED (2019) has 3 USB ports: 3 × USB Type-A (USB 2.0).
What video connections does the LG OLED B9 55-65" OLED (2019) have?
The LG OLED B9 55-65" 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).
