A4TECH OP-550 / OP-550S Wired Optical Mouse | 1200 DPI | 5M Clicks Lifetime | Dust-Resistant Wheel

Effortless Performance Meets Everyday Reliability

The A4TECH OP-550 / OP-550S is engineered to deliver smooth, accurate navigation for professionals, students, and casual users alike. Equipped with a high-grade optical sensor and an optimized 1200 DPI resolution, it guarantees precision tracking across multiple surfaces, eliminating the absolute need for a mouse pad. Whether you are sorting through expansive spreadsheets, editing documents, or browsing the web, this mouse responds with fluid, stutter-free movement.

Choose Your Click: Standard vs. Silent

Tailor your workstation to your exact preferences.

• OP-550 (Standard Variant): Provides the traditional, satisfying tactile click response.

• OP-550S (Silent Variant): Features silent-click switches designed to eliminate distraction, keeping you entirely focused on the task at hand without disturbing those around you.

Built to Last: 5-Million-Click Lifecycle & Dust Resistance

Say goodbye to frequent replacements. A4TECH is legendary for durability, and the OP-550 series is no exception. It features primary buttons tested to withstand over 5 million clicks. Furthermore, the innovative Dust-Resistant Wheel prevents dust and debris from getting inside, ensuring smooth, precise scrolling over years of continuous operation.

Symmetric Ergonomic Comfort

Designed with a comfortable, contoured symmetric profile, this mouse comfortably fits both left-handed and right-handed users. The high-quality Teflon feet ensure low friction, allowing the mouse to glide smoothly and reduce wrist fatigue during extended hours of use.

Smart 8-in-One Gestures & 4-Way Scrolling

Boost your speed with integrated smart software. The wheel supports 4-Way Scrolling (smart horizontal and vertical navigation), making wide documents a breeze to read. Additionally, configure the 8-in-One Gesture utility to execute your favorite hotkey shortcuts instantly with simple mouse movements.

Key Features:

• High-Precision 1200 DPI: Smooth and accurate tracking on almost any surface, including textiles.

• Extremely Durable Switches: Guaranteed durability of over 5 million clicks.

• Dust-Resistant Scroll Wheel: Keeps debris out to extend the life-span of your scroll wheel.

• Symmetric Ambidextrous Design: Fits perfectly in either the left or right hand.

• Optional Silent Click (OP-550S): Quiet clicks for noise-free environments.

• 4-Way Smart Wheel: Provides efficient vertical and horizontal scrolling.

• Plug & Play: Easy USB connectivity with a generous 150 cm cable length.

Technical Specifications:

• Brand: A4TECH

• Model: OP-550 (Standard Click) / OP-550S (Silent Click)

• Connection Type: Wired USB (Plug & Play)

• Sensor Type: Advanced Optical

• Resolution: 1200 DPI

• Number of Buttons: 3

• Cable Length: 150 cm (1.5 meters)

• Dimensions: 116(L) x 62(W) x 38(H) mm

• Net Weight: 84 g (with cable)

• Glides: Premium Teflon Foot

• System Requirements: Windows 10, Windows 11, and compatible older setups

What’s in the Box:

• 1 x A4TECH Wired Optical Mouse (OP-550 or OP-550S)