Display
- Screen size
- 39.7 in
- Resolution
- 5120 × 2160
- Panel type
- IPS
- Aspect ratio
- 21:9
- Refresh rate
- 120 Hz
- HDR
- DisplayHDR 600
- Adaptive sync
- Yes
- Curved
- No
LG monitor
UltraFine 40U990A-W
Monitor specifications and connectivity information for the LGUltraFine 40U990A-W.
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Video & connectivity
- HDMI inputs
- 2
- HDMI version
- 2.1
- DisplayPort inputs
- 1
- DisplayPort version
- 2.1
- USB-C input
- Yes
- USB-C power delivery
- 140 W
- USB-C DisplayPort Alt Mode
- Yes
- Thunderbolt input
- Yes
Features
- USB hub
- Yes
- USB upstream
- Yes
- Ethernet
- Yes
- KVM
- Yes
- Speakers
- Yes
Stand & mounting
- VESA mount
- Yes
- Height adjustment
- Yes
- Pivot
- Yes
- Swivel
- Yes
- Tilt
- Yes
Product information
- Release year
- 2026.0
- Availability
- current/recent candidate
Specifications are based on manufacturer documentation reviewed for this model.