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Black 34-inch curved ultrawide gaming monitor with three-sided micro-edge bezel and height-adjustable stand

HP

HP P34hc G4 34" 100 Hz UWQHD curved gaming monitor 21Y56AA#ABA

SKU CH-M9T0-B4SDW MPN 21Y56AA#ABA

34-inch curved VA panel delivers 3440 x 1440 resolution at 100 Hz with USB-C 65 W power delivery and integrated KVM

  • Screen size34 in (86.4 cm)
  • Display resolution3440 × 1440 (2K)
  • Refresh frequency100 Hz
  • Panel typeVA
  • Pixel response time5 ms (GTG)
  • Power draw190 W (maximum), 48 W (typical), 0.5 W (standby)
  • Immersive ultrawide view with 34" 1500R curved VA panel
  • Sharp UWQHD detail at 3440 x 1440 resolution
  • Smooth 100 Hz refresh for fluid motion
  • Flexible ergonomics via height, tilt and slide adjustments
  • Single-cable docking with USB-C 65W power delivery

34-inch 100 Hz UWQHD curved gaming monitor

The HP P34hc G4 uses a 34-inch VA panel with a 1500R curvature and a 21:9 aspect ratio. Its 3440 x 1440 resolution and 100 Hz refresh rate suit gaming and productivity workloads. A 5 ms GTG response time and 3500:1 contrast ratio support motion clarity and deep blacks. The anti-glare coating and 178-degree viewing angles maintain image quality across the ultrawide display.

Check GPU outputs and desk space before ordering

Verify your graphics card provides DisplayPort, HDMI or USB-C with DisplayPort Alt Mode to drive 3440 x 1440 at 100 Hz. Confirm the 1500R curve fits your viewing distance and that the stand’s height, tilt and slide adjustments suit your eye level. The monitor includes DisplayPort, HDMI and USB-C to USB-C cables in the box. Integrated 2 x 3 W speakers handle basic audio without external hardware.

KVM and USB-C 65 W PD simplify a dual-system desk

Connect two computers and switch keyboard, mouse and video through the built-in KVM with Picture by Picture support. The USB-C port delivers up to 65 W power delivery to charge a compatible laptop while transmitting video and data. Height, tilt and slide adjustments let you align the curved screen with secondary displays. The three-sided micro-edge design reduces visual gaps in multi-monitor configurations.

How it compares

Measured against everything we stock in Monitors for Gamers, at today’s prices. Recalculated every night.

Price $436.99
Pricier than about 81% of the 839 comparable items (median $189.99).
Screen size 34 in (86.4 cm)
Higher than about 90% of the 814 comparable items (median 27 in).
Refresh frequency 100 Hz
Lower than about 92% of the 735 comparable items (median 180 Hz).

Specifications

Product
Brand nameHP
Product lineP34hc G4
Model name21Y56AA#ABA
Part number21Y56AA#ABA
Case colorBlack
Display
Screen size34 in (86.4 cm)
Display resolution3440 × 1440 (2K)
Refresh frequency100 Hz
Panel typeVA
Pixel response time5 ms (GTG)
Image brightness250 cd/m2
Screen curvatureCurved
Pixel pitch0.231 mm
Screen ratio21:9
Widescreen formatYes
BacklightYes
Contrast3500:1
Screen finishAnti-glare
Viewing angles178° (H) / 178° (V)
Display formatUWQHD
Audio & video
HDCP compatibilityYes
Integrated speakers2 × 3 W
Ports & slots
HDMI ports1 x HDMI 2.0
Video input typesDigital
Connection typesHDMI, DisplayPort, USB-C
DisplayPort connectors1 x DisplayPort 1.2
Video connectors1 x DisplayPort 1.2 / 1 x HDMI 2.0 / 1 x USB-C (DP Alternative)
USB connections4 x USB 3.0 Type-A Downstream
USB 3.0 ports1 x USB Type-C (Alternative mode DisplayPort 1.2, power delivery up to 65 W)
4 x USB-A 3.2 Gen 1
Power
Power draw190 W (maximum), 48 W (typical), 0.5 W (standby)
Power supply100–240 VAC, 50/60 Hz
Size & build
Stand adjustabilityHeight Adjustable
VESA mounting pattern100 × 100 mm
Product dimensions14.44 in × 31.89 in × 4.41 in
Product weight11.44 lb (5.19 kg)
Shipping weight14.06 kg
Package size950 × 480 × 225 mm
In the box
In the boxMonitor; DisplayPort Cable; HDMI Cable; Warranty Card; USB Type-C to C Cable; Quick Setup Poster
Environment & compliance
CertificationsBIS; CB; CCC; CE; CEL; cTUVus; EAC; EPA; FCC; GS Mark; ISO 9241-307; KC/KCC; NOM; RCM; VCCI; WEEE; WW application; ICE

Questions about this item

What cables and accessories come with the HP P34hc G4 21Y56AA#ABA monitor?

The box contains the monitor, a DisplayPort cable, an HDMI cable, a USB Type-C to Type-C cable, an AC power cord, a quick setup poster and a warranty card.

Which version of the 34" 100 Hz UWQHD curved gaming monitor should I choose if I need USB-C with power delivery?

The P34hc G4 model 21Y56AA#ABA includes a USB-C port that delivers up to 65 W of power, so this single SKU covers that requirement.

How does the 100 Hz refresh rate and 5 ms response time feel in actual gameplay on this VA panel?

The 100 Hz refresh rate and 5 ms GTG response time give smooth motion in fast scenes, while the VA panel's 3500:1 contrast keeps dark details visible.

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