C345B-QU240T (Mid 2026)

34" Ultrawide Curved Quad HD 240Hz Gaming Monitor

  • 3440 x 1440 WQHD Resolution
  • Up to 240Hz Refresh Rate
  • 1500R Curvature
  • Adaptive Sync Supported
  • 2 x DisplayPorts, 2 x HDMI
Price: $499.99
  • Qty:  

C345B-QU240T Overview
  • 3440 x 1440 WQHD Resolution
  • Up to 240Hz Refresh Rate
  • 1500R Curvature
  • Adaptive Sync Supported
  • 2 x DisplayPorts, 2 x HDMI

Display

Active Screen Size
34" Diagonal Viewable
Panel Type
VA (Vertical Alignment)
Curvature
1500R
Native Resolution
3440 x 1440 Wide Quad HD
Refresh Rate
Up to 240Hz
Aspect Ratio
21:9 Ultrawide
Response Time
1ms (GtG) with OD
Pixel Pitch
0.23175mm (H) x 0.23175mm (V)
Color Gamut
100% sRGB
Dynamic Contrast Ratio
1,000,000:1
Color Depth
16.7M
Contrast Ratio
3,000:1
Brightness (Typ.)
250 cd/m² Typ. (300 cd/m² Max)
Viewing Angle
Vertical: 178° / Horizontal: 178°
High Dynamic Range (HDR)
Yes
Backlight Type
Edge-Lit LED
Backlight Life
30,000+ Hours
Anti-Flicker
Yes
Surface Treatment
Anti-glare, 3H

Features

Color Temperature
Warm, Normal (Default), Cool, User
On Screen Display Control (OSD)
Quick Start, Picture, Color, System
Picture Presets
Standard, User, Movie, ECO
Game Presets
FPS and RTS
OSD Supported Languages
English (Default), French, Spanish , Chinese
Type of Sync
Adaptive Sync
Blue Light Shift
Available
Picture by Picture
Yes
Picture-in-Picture
Yes
Overdrive
Yes
Auto Dynamic Contrast Mode
Available
Auto Standby
Available
Gamma
Adjustable

Audio Features

Speakers
2 x 3W/4Ω

Inputs & Outputs

HDMI (# of Ports & Version)
2 x HDMI Ports (2.0)
Supported HDMI Signals
Up to 3440 x 1440 @ 240Hz
DP (# of Ports & Version)
2 x DisplayPort (1.4)
Supported DP Signals
Up to 3440 x 1440 @ 240Hz
3.5mm Headphone Jack (Output)
Yes

Mechanical Features

Chassis Colors
Black
Tilt
15° backward and 5° forward
Neck / Stand Detachable
Yes
VESA Mount Pattern (mm)
75 x 75mm
VESA Mount Screw Size (mm)
M4 x 10mm
Neck Screw Size & Quantity (mm)
M4 x 10mm (2pcs)
Stand Screw Size & Quantity (mm)
M4 x 12mm (3pcs)
Monitor Neck Height (inches)
95.9mm

Dimensions

With Stand (inches, W x H x D)
31.8" x 18.1" x 8.5"
Without Stand (Inches, W x H x D)
31.8" x 14.3" x 3"
Carton Box Dimension (inches, W x H x D)
35.09" x 17.32" x 6.89"
Stand Separation Dimension (Inches, W x D)
306mm x 216.2mm

Weight

Net Weight with Stand (lbs)
14.17 lbs
Net Weight without Stand (lbs)
10.91 lbs
Gross Weight (lbs)
19.96 lbs

Power

Type
AC Power Adapter
Power Range (V, A, Hz)
AC Adapter Input: 100 – 240V, 50/60Hz; Monitor Input: 19V, 3.42A
Power Consumption (Typical)
36W
Maximum
55W
Standby
≤0.29W
Sleep
≤0.3W
Off
≤0.26W

Regulations / Certifications

Regulations
FCC, cTUVus, AER
Certifications
HDMI, ISTA

Warranty

Limited Parts and Labor
One Year

What's in the Box?

Power Cable
AC Power Adapter x 1
Display Cable
DisplayPort Cable x 1
Accessories
Monitor x 1, Neck x 1, Stand x 1, Sceptre Screw Driver x 1, Neck Screws x 2, Stand Screws x 3, User Manual x 1, Warranty Card x 1
Power Adapter
AC19V-3.42A

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CONTACT US

CUSTOMER SERVICE

Phone#:
1-800-788-2878
1-626-369-3698
Email: SceptreCS@Sceptre.com

TECH SUPPORT

Phone#:
1-800-788-2878
1-626-369-3698
Email: SceptreTS@Sceptre.com
Live Chat

HOURS OF OPERATION

Monday to Friday 9:00AM ~ 5:30PM PST
Please have your Product/Serial # ready.