Ultrawide~$1,229

HP Series 7 Pro 734pm

Everything a hybrid-work desk usually needs three separate boxes for is inside this one: a Thunderbolt 4 dock with 100 W of charging and gigabit Ethernet, a pop-up 5 MP HDR webcam, a four-speaker Poly Studio array with dual noise-cancelling microphones, and a KVM that swaps keyboard and mouse between two machines. The panel underneath is an IPS Black at 3440×1440 and 120 Hz, so its 2,000:1 static contrast is roughly double a conventional IPS — noticeable on dark documents rather than in games. HP quotes 400 nits, 100% sRGB and 98% Display P3, with Pantone validation.

Approx. price

~$1,229

snapshot, not a live price

Sharpness

46ppd · sharp

text is clean; pixel edges show if you look for them

HDR tier

Accepts an HDR signal

an edge-lit backlight with no dimming zones — HDR mode changes the tone curve, not the contrast

Peak brightness

400nits claimed

DisplayHDR 400

USB-C power

100 W

keeps a 14-inch machine charged under normal load

Max refresh

120 Hz

5 ms GtG rated

Port speed — can each input carry this panel?

HDMI 2.0· below the panel's maximum
DisplayPort 1.4· full speed
Thunderbolt (DP 1.4)· full speed

This panel needs 17.1 Gbps at 3440×1440, 120 Hz and 24 bits per pixel, with no DSC to fall back on.

Best for: One cable replacing a dock, a webcam and a speakerphone on a hybrid desk

Specifications

Approx. price: ~$1,229
Type: Ultrawide
Screen size: 34 in
Resolution: 3440×1440
Aspect ratio: 21:9
Pixels per degree: 46 — sharp
Pixels per inch: 110
Panel: IPS
Finish: matte
Curvature: 1900R
Max refresh: 120 Hz
Response time: 5 ms GtG
VRR: FreeSync
HDR tier: Accepts an HDR signal
HDR certification: DisplayHDR 400
Peak brightness: 400 nits claimed
SDR brightness: 400 nits
Local dimming: None
Static contrast: 2,000:1
Colour gamut: 98% DCI-P3
Colour depth: 8-bit
HDMI: 1 × HDMI 2.0
DisplayPort: 1 × DisplayPort 1.4
DSC: Not supported
Port speed: 2 of 3 inputs at full speed
USB-C: Video in over USB-C
USB-C power: 100 W — 14-inch class laptop
Thunderbolt: Yes
KVM: Built in
USB hub: 7 ports
Speakers: Built in
Stand: height, tilt, swivel
VESA: 100x100
Weight: 25 lb
Released: 2025
$ per inch: $36
$ per megapixel: $248

Features

Thunderbolt 4 dock with 100 W charging and gigabit Ethernet
Pop-up 5 MP HDR webcam with AI framing
Four 3 W Poly Studio speakers with dual noise-cancelling microphones
KVM switching between two connected machines
IPS Black panel at 2,000:1 static contrast
DisplayPort output for daisy-chaining a second display

What it does well

IPS Black doubles the static contrast of a normal IPS panel, which is what makes black text on a dark theme stop looking grey
Thunderbolt 4 at 100 W runs and charges a workstation laptop over the same cable as the picture, plus Ethernet and seven downstream USB ports
The pop-up webcam physically retracts, so privacy does not depend on a sticker
KVM means two machines share one keyboard, mouse and screen without a separate switch
120 Hz on a business ultrawide, where 60 is still the default — it shows up in pointer feel and scrolling rather than in games
98% Display P3 with Pantone validation is a real colour claim, not a marketing badge

What it gives up

$1,229 against the $700-800 the 34-inch gaming ultrawides here cost — the dock, camera and KVM are what the difference buys
FreeSync with no certified tier above it, so the 120 Hz shows up in scrolling and pointer feel rather than in games
DisplayHDR 400 with no dimming zones — it accepts an HDR signal and cannot show one
25 pounds with the stand, and the stand does not pivot
109 pixels per inch works out to 46 pixels per degree, sharp but a step below a 4K panel of the same height

The two lists above come from the maker’s specifications and from published third-party measurements, not from owner reports. Where owner discussion has been read it appears in its own section below, so the two are never mistaken for each other.