| Specification | MAG401QR |
| Panel Size | 40" (101.6 cm) |
| Active Display Area (mm) | 926.22(H) x 387.72(V) |
| Curvature | Flat |
| Panel Type | IPS |
| Panel Resolution | 3440 x 1440 (UWQHD) |
| Pixel Pitch (H x V) | 0.2697(H) x 0.2697(V) |
| Aspect Ratio | 21:09 |
| Brightness (nits) | 400 (Typ.), 400 (HDR peak) |
| Contrast Ratio | 1000:01:00 |
| DCR | 100,000,000:1 |
| Signal Frequency | 30~160 KHz(H) / 60~144 Hz(V) |
| Activated Range | 48~155Hz |
| Refresh Rate | 155Hz |
| Response Time | 1ms (MPRT) |
| Dynamic Refresh Rate Technology | Adaptive Sync |
| HDR Support | VESA DisplayHDR 400 |
| Video Ports | 2 x HDMI™ (Supports 3440x1440@100Hz as specified in HDMI™ 2.0b) 1 x DisplayPort (Supports 3440x1440@155Hz as specified in DisplayPort 1.4a) 1 x Type-C (DP alt. with PD 65W) |
| USB Ports | 2 x USB 2.0 Type-A 1 x USB 2.0 Type-B Upstream 1 x USB 2.0 Type-C (PD 65W) |
| Audio Ports | 1 x Headphone out |
| Viewing Angle | 178°(H) / 178°(V) |
| Adobe RGB / DCI-P3 / sRGB | 90% / 94% / 118% |
| Surface Treatment | Anti-glare |
| Display Colors | 1.07B (8 bits + FRC) |
| Control | 5-Way Navigator Joystick |
| Console Mode | 2K Resolution PS5™ Optimization, FHD @ 120Hz |
| Frameless Design | Yes |
| PIP / PBP Function | Yes |
| Power Type | Power Cable |
| Power Input | 100~240V, 50/60Hz |
| Adjustment (Tilt) | -5° ~ 20° |
| Kensington Lock | Yes |
| VESA Mounting | 100 x 100 mm |
| Weight (NW / GW) | 10.3 kg / 12.4 kg |
| Weight (Without Stand) | 8 kg |
| Dimension (W x D x H) | 945.22 x 289.63 x 530.29 mm |
| Dimension (Without Stand) | 945.22 x 83.32 x 416.12 mm |
| Note | DisplayPort: 3440X1440 (Up to 155Hz) Type-C: 3440 x 1440 (Up to 155Hz) HDMI™: 3440 x 1440 (Up to 100Hz) Adobe RGB, DCI-P3 and sRGB follow CIE1976 Standard |