This article covers BenQ MOBIUZ EX271U 27インチ 4K eARC 165Hz 1ms DP 1.4 HDMI 2.1 65W USB-C ゲーミングモニター 95%P3 DisplayHDR 400 Freesync Premium.

Overview

The BenQ MOBIUZ EX271U is a 27-inch 4K (3840×2160) gaming monitor that targets console gamers and multi-device users who want a single display to rule them all. It supports up to 165 Hz refresh rate with 1 ms MPRT response, and offers DisplayPort 1.4, HDMI 2.1, and USB-C with 65 W Power Delivery for charging a connected laptop. Its standout feature is the built-in eARC (Enhanced Audio Return Channel) — the first in a gaming monitor — which enables lossless 7.1-channel audio transmission over HDMI to an AV receiver or soundbar. The integrated KVM switch lets you share a single keyboard and mouse between two hosts (PC and console, for example), cutting cable clutter on your desk.

Connectivity & Compatibility

  • Video inputs: 1× DisplayPort 1.4, 2× HDMI 2.1, 1× USB-C (DP Alt Mode) - USB hub: 2× USB 3.2 Gen1 (5 Gbps) downstream, 1× USB-C upstream - KVM: Works via USB-C + DisplayPort/HDMI combo; supports two hosts - eARC: One HDMI 2.1 port supports eARC; connect to a compatible AV receiver or soundbar for 7.1-channel lossless audio - Compatible devices: PC (Windows/Mac), PS5, Xbox Series X/S, Nintendo Switch, Apple TV

Product Info

Released in late 2025, the EX271U is priced around ¥119,839 (≈$800) on Japan. BenQ offers a 3-year panel warranty. The box includes a power cable, DisplayPort cable, HDMI cable, USB upstream cable, and a quick-start guide. Market positioning is mid-high: 4K 165 Hz, DisplayHDR 400, 95% DCI-P3 color gamut — solid for gaming — but the eARC and KVM features are what set it apart from the competition. It’s not a pure HDR monitor, but it’s a versatile hub for console-centric setups.

Best Use Cases

  • Console gamers: If you own a PS5 or Xbox Series X and want 4K/120 Hz gaming plus lossless 7.1-channel audio via eARC to a soundbar or AV receiver, this monitor delivers. No other monitor in this price range offers eARC. - Multi-device users: With KVM, you can share one keyboard and mouse between a PC and a console. Great for streamers or anyone who switches between work and play. - Creative/gaming hybrid: 95% DCI-P3 coverage and DisplayHDR 400 make it suitable for photo editing and HDR gaming, though you’ll want a calibration tool for professional color work.

Things to Consider

  • eARC is limited to one HDMI 2.1 port; you can’t use it on two devices simultaneously. - No built-in speakers — audio output is designed for external devices via eARC. - KVM works best with USB-C connection; using only DisplayPort may disable KVM. - The stand offers height, tilt, and swivel adjustment, plus VESA 100×100 mount support. ## Alternatives
    In the same price bracket, the ASUS ROG Swift PG27UQ2A (4K 160 Hz, DisplayHDR 600) offers higher peak brightness but lacks eARC and KVM. The Dell S2722QC (4K 60 Hz, USB-C 65 W) is a cheaper alternative but doesn’t support high refresh rates or KVM. For console gamers who need eARC, the EX271U is the clear winner.

Product Disclosure (Amazon)

  • Manufacturer: AMD
  • Seller: CC.apartment
  • Fulfilled by: CC.apartment
  • ASIN: B0B4WLZ6Y4
  • Note: This article covers a manufacturer-made product based on Amazon listing details.