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The SJ55W 34" 21:9 Free Sync LCD Monitor from Samsung features an expansive 34" Vertical Alignment (VA) panel that provides you with vivid colors and wide viewing angles. Moreover, it has an ultra-wide 21:9 aspect ratio with a 3440 x 1440 UWQHD resolution for enhanced multitasking. Other specs include a 3000:1 static contrast ratio, a 300 cd/m² brightness rating, and support for up to 16.7 million colors. When used for gaming, the SJ55W has a fast 4 ms response time as well as AMD Free Sync technology for a smoother gaming experience. Once connected to your system via HDMI or DisplayPort, it can be freely adjusted to fit your viewing preference. Otherwise, you can install a VESA stand, mount, or arm using the mounting holes on the back





With such a large screen size, this SJ55W can efficiently utilize Picture-by-Picture (PBP) and Picture-in-Picture (PIP) modes for enhanced multitasking.

AMD Free Sync

AMD Free Sync technology syncs the display's refresh rate with your graphics card's frame rate output to reduce screen tearing, stuttering, and ghosting for a smoother gaming experience.




Panel TypeVA LCD
Resolution3440 x 1440
Aspect Ratio21:9
Pixels Per Inch (ppi)109 ppi
Maximum Brightness300 cd/m2
Contrast Ratio3000:1
Refresh Rate75 Hz
Adaptive-Sync TechnologyFree Sync
Bit Depth / Color Support8-Bit (16.7 Million Colors)
HDR CompatibilityNone
Response Time4 ms
Viewing Angle (H x V)178 x 178°

Inputs / Outputs

Connectivity1 x HDMI 1.4
 1 x HDMI 2.0
 1 x DisplayPort
 1 x 3.5 mm Output
Built-In SpeakersNone


Power Consumption59 W (Maximum)
 0.3 W (Standby)
AC Input Power100 to 240 VAC, 50 / 60 Hz
Power Adapter TypeExternal


Operating Temperature40 to 104°F / 4 to 40°C
Operating Humidity10 to 80%


Height AdjustmentNone
Rotation AdjustmentNone
Swivel AdjustmentNone
Tilt Adjustment-2 to 15°
Mounting-Hole Pattern100 x 100 mm
Dimensions (W x H x D)32.6 x 18.5 x 9.5" / 828.0 x 469.9 x 241.3 mm (with Stand)
 32.6 x 14.5 x 4.2" / 828.0 x 368.3 x 106.7 mm (without Stand)
Weight15.21 lb / 6.90 kg (with Stand)
 14.1 lb / 6.40 kg (without Stand)

Packaging Info

Package Weight21.1 lb
Box Dimensions (LxWxH)35 x 17 x 6"
  • 34" 21:9 Free Sync LCD Monitor
  • 3440 x 1440 UWQHD Resolution
  • Vertical Alignment (VA) Panel
  • 3000:1 Static Contrast Ratio
  • HDMI + DisplayPort Inputs

Samsung LS34J552WQNXZA-RB 34" 21:9 Wide LCD Monitor

SKU: 1007499-1
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