With 4,000 ANSI lumens and dual HDMI 2.0b inputs, this DLP projector handles bright rooms and multi-source setups with ease. A USB-C port lets you connect a Nintendo Switch or laptop directly without an adapter — a rare feature in this price range. The 240Hz refresh rate at 1080p and 4.2ms input lag make it a solid pick for gaming alongside movie night. An RJ-45 port and RS-232 are included for network control and custom installation.
4K UHD DLP projector with 4,000 lumens, dual HDMI 2.0b, USB-C, 240Hz gaming mode, and HDR10/HLG support.
Device Information
- Manufacturer
- ViewSonic
- Release Year
- 2021
- Model Number
- PX748-4K
- Category
- Projector
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) | 2 | — | — | HDMI 1 / HDMI 2 | Dual HDMI inputs for multi-source setups. |
| USB Type-C (USB 3.2 Gen 1) | 1 | — | DP Alt Mode | USB-C | Video input from compatible devices like Nintendo Switch. |
| USB Type-A (USB 2.0) | 1 | — | — | USB-A | Power and media playback. |
| RJ-45 (100BASE-TX Fast Ethernet) | 1 | — | — | LAN | Network control and management. |
| 3.5mm TRS (Stereo Audio) | 1 | — | — | Audio Out | 3.5mm audio output. |
| Kensington Security Slot | 1 | — | — | — | — |
Notes & Compatibility
4,000 ANSI lumens, 12,000:1 contrast. HDR10 and HLG support. 240Hz at 1080p, 4.2ms input lag for gaming. XPR 4K UHD resolution. RS-232 for serial control, 12V trigger for screen automation. USB-C supports video input from compatible devices.
Common questions
How many ports does the ViewSonic PX748-4K (2021) have?
The ViewSonic PX748-4K (2021) has 7 ports in total: 2 × HDMI 2.0b (Type A – Standard), 1 × USB Type-C (USB 3.2 Gen 1), 1 × USB Type-A (USB 2.0), 1 × RJ-45 (100BASE-TX Fast Ethernet), 1 × 3.5mm TRS (Stereo Audio) and 1 × Kensington Security Slot.
What kinds of ports does the ViewSonic PX748-4K (2021) have?
By connector family, the ViewSonic PX748-4K (2021) has 2 HDMI, 2 USB, 1 Network, 1 Audio and 1 Other.
How many USB ports does the ViewSonic PX748-4K (2021) have?
The ViewSonic PX748-4K (2021) has 2 USB ports: 1 × USB Type-C (USB 3.2 Gen 1) and 1 × USB Type-A (USB 2.0).
What video connections does the ViewSonic PX748-4K (2021) have?
The ViewSonic PX748-4K (2021) has 3 ports that can carry video: 2 × HDMI 2.0b (Type A – Standard) and 1 × USB Type-C (USB 3.2 Gen 1). Its USB Type-C (USB 3.2 Gen 1) port supports DisplayPort Alt Mode, so video travels over the USB-C connector itself with a suitable cable or adapter.
