This article covers エンドゲームギア(Endgame Gear) OP1w 4K ワイヤレス ゲーミングマウス 4000Hz ポーリングレート Kailh GXスイッチ PixArt PAW3395 センサー 本体重量 58.5g ボタン数 7個 ホワイト EGG-OP1W4K-WHT.

Overview

The Endgame Gear OP1w 4K is a wireless gaming mouse built for competitive gamers who demand the lowest latency and lightest weight. At just 58.5 grams, it pairs a PixArt PAW3395 optical sensor (26000 CPI, 650 IPS, 50G) with a native 4000Hz polling rate that keeps click delay under 310 microseconds on average. The main buttons use the Kailh GX mechanical switch co-developed by Endgame Gear and Kailh, featuring a unique SPDT design that allows two profiles — speed mode and safe mode — toggled via software. The included 4K USB dongle uses separate high-performance MCUs on both the mouse and receiver to maintain stable wireless transmission at 4000Hz. A paracord-style cable (Flex Cord 4.0) is included for wired use or charging, with an upward-facing connector that keeps the cable out of the way during gameplay.

Connectivity & Compatibility

Connection: 2.4GHz wireless (proprietary dongle), USB 2.0 wired (USB-A on PC, USB-C on mouse) Polling rate selectable: 4000 / 2000 / 1000 Hz (via button on bottom) Compatible with Windows 10/11 (configuration software required) Wireless range: recommended within 20 cm of dongle for best performance The dongle also works as a USB extension adapter, allowing you to place it close to the mouse pad. The mouse enters power-save mode after 1 minute of idle and deep sleep after 3 minutes, adjustable in the software.

Product Info

Released around autumn 2024, the OP1w 4K is priced at approximately ¥12,800 (tax included) through official channels. The mouse comes with a 2-year warranty (terms vary by region). Package includes the mouse, 4K dongle, USB extension adapter, Flex Cord 4.0 cable, extra large mouse feet, and a screwdriver for switch swaps. Market positioning: mid-to-high tier for esports-focused wireless mice. It offers a rare combination of 4000Hz polling and sub-60g weight — a spec that few competitors match at this price point.

Best Use Cases

Competitive FPS players: The 4000Hz polling and low-latency Kailh GX switches give a tangible edge in tracking and flick shots. The light weight reduces hand fatigue during marathon sessions. Claw / fingertip grip users: The smaller shape compared to the XM series fits small-to-medium hands well, with flat sides that avoid restricting finger placement. * Enthusiasts who like to customize: Screw-in switch sockets allow hot-swapping main switches without soldering. Endgame Gear offers official replacement switches to change click feel.

Product Disclosure (Amazon)

  • Manufacturer: エンドゲームギア(Endgame Gear)
  • Seller: アーキサイト公式ストア
  • Fulfilled by: Amazon
  • ASIN: B0DG61K31Y
  • Note: This article covers a manufacturer-made product based on Amazon listing details.