LG's 2021 entry-level OLED pairs per-pixel blacks with a split HDMI panel: two of its four inputs are HDMI 2.1 for 4K@120Hz with VRR and ALLM, and the other two stop at 4K@60Hz, so put the console or gaming PC on a 2.1 input. eARC sits on HDMI 3 for lossless audio to a soundbar, with optical and a 3.5mm headphone jack as fallbacks. Three USB 2.0 ports cover media playback, and the Ethernet port is 10/100. Here's every port and the cables you'll need.
2021 LG entry-level OLED B1 with α7 AI Processor Gen4, 120Hz gaming. Only 2 HDMI 2.1 ports.
Device Information
- Manufacturer
- LG
- Release Year
- 2021
- Model Number
- OLED B1 (e.g., OLED65B1PUA; 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 only |
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 2 | 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 3 | eARC, 4K@120Hz, VRR, ALLM |
| HDMI 2.0b (Type A – Standard) | 1 | — | — | HDMI 4 | 4K@60Hz only |
| USB Type-A (USB 2.0) | 3 | — | — | — | For media playback |
| 3.5mm TRS (Stereo Audio) | 1 | — | — | — | Headphone output |
| 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 |
| RF Antenna Input (Coaxial) | 1 | — | — | — | Antenna/cable |
Notes & Compatibility
HDMI: 2x HDMI 2.1 (4K@120Hz, VRR) + 2x HDMI 2.0 (4K@60Hz). eARC: HDMI 3. USB: 3x USB 2.0 Type-A (1 rear, 2 side). Headphone out: 3.5mm jack.
Common questions
How many ports does the LG OLED B1 55-77" OLED (2021) have?
The LG OLED B1 55-77" OLED (2021) has 11 ports in total: 2 × HDMI 2.0b (Type A – Standard), 2 × HDMI 2.1 (Type A – Standard), 3 × USB Type-A (USB 2.0), 1 × 3.5mm TRS (Stereo Audio), 1 × Optical TOSLINK (S/PDIF), 1 × RJ-45 (100BASE-TX Fast Ethernet) and 1 × RF Antenna Input (Coaxial).
What kinds of ports does the LG OLED B1 55-77" OLED (2021) have?
By connector family, the LG OLED B1 55-77" OLED (2021) has 4 HDMI, 3 USB, 2 Audio, 1 Network and 1 Video (Legacy).
How many USB ports does the LG OLED B1 55-77" OLED (2021) have?
The LG OLED B1 55-77" OLED (2021) has 3 USB ports: 3 × USB Type-A (USB 2.0).
What video connections does the LG OLED B1 55-77" OLED (2021) have?
The LG OLED B1 55-77" OLED (2021) has 5 ports that can carry video: 2 × HDMI 2.0b (Type A – Standard), 2 × HDMI 2.1 (Type A – Standard) and 1 × RF Antenna Input (Coaxial).
