Dell KM555-BLK-US - Pro Compact Silent Wireless Keyboard & Mouse Combo, Bluetooth 5.1, 4020 DPI Optical, Black - New

The Dell KM555-BLK-US Pro Compact Silent Keyboard and Mouse combo brings a whisper-quiet typing and clicking experience to any home office or workplace. It pairs a silent plunger-key keyboard with a 4020 DPI optical mouse, both connecting via dual wireless — 2.4GHz RF or Bluetooth 5.1 — no extra software required for basic use. Built in a US QWERTY layout with an adjustable-tilt keyboard and a symmetrical, amofferextrous mouse, this set is ideal for quiet offices, shared workspaces, and home desks. Includes the Dell Secure Link USB Receiver and all required batteries for immediate use.

Dell KM555-BLK-US - Key Features & Benefits

• Whisper-Quiet Plunger Keys: The KM555 keyboard uses silent plunger keyswitches engineered to reduce typing noise, a strong fit for shared offices, call centers, and quiet home workspaces.
• Dual Wireless Connectivity: Connect using the included Dell Secure Link USB Receiver (2.4GHz RF) or pair directly over Bluetooth 5.1 — switch easily between a laptop, desktop, or compatible mobile device.
• Precision 4020 DPI Optical Mouse: The KM555 mouse features a 4020 DPI optical sensor with 3 buttons and a scroll wheel, in a symmetrical shape built for left- or right-handed use.
• Comfort-Focused Compact Design: The keyboard includes adjustable tilt legs and a spill-resistant design, while the compact footprint frees up desk space for the mouse or notes.
• Multimedia & Copilot Hot Keys: Dedicated keys for volume, mute, play/pause, and track forward/back, plus a Copilot key for quick access to Windows 11 AI features on supported systems.

Dell KM555-BLK-US - Technical Specifications

• Manufacturer: Dell
• Model: KM555
• Part Number: KM555-BLK-US • Dell Direct MPN: 0M6MK
• Product Type: Wireless Silent Compact Keyboard & Mouse Combo
• Color: Black
• Connectivity: Dual Wireless — 2.4GHz RF (Dell Secure Link USB Receiver) & Bluetooth 5.1 • Up to 10m (33 ft) range
• Mouse Sensor & Buttons: Optical, 4020 DPI • 3 buttons (Left, Right, Middle/Scroll Wheel)
• Keyboard Keyswitch: Plunger, Quiet Keys
• Keyboard Features: Adjustable Tilt Legs, Spill-Resistant Design, Programmable Hot Keys
• Keyboard Layout: QWERTY, English (US)
• Battery: Keyboard – two AAA • Mouse – one AA (included)
• Dimensions: Keyboard 15.71" x 5" x 1.02" • Mouse 4.13" x 2.36" x 1.50"
• Weight: Keyboard 14.32 oz • Mouse 2.36 oz
• OS Support: Windows 7, 8.1, 10, 11+ • macOS • ChromeOS • Linux (RHEL 8, Ubuntu 18.04) • Android
• Condition: New

Dell KM555-BLK-US - Frequently Asked Questions (FAQ)

• What's the difference between the KM555 and other Dell wireless keyboard/mouse combos, like the KM5221W?
  The KM555 is Dell's newer silent-key compact combo with a 4020 DPI optical mouse and dual 2.4GHz RF/Bluetooth 5.1 connectivity. Older combos such as the KM5221W use standard, non-silent keys and a different mouse sensor — always confirm the exact part number (KM555-BLK-US) matches your order.
• Do I need to install software to use this keyboard and mouse?
  No — the KM555 works as a standard plug-and-play device out of the box via the Dell Secure Link USB Receiver or Bluetooth 5.1. Installing Dell Peripheral Manager is optional and only needed to customize mouse DPI or programmable buttons.
• How is this keyboard and mouse powered?
  The keyboard uses two AAA batteries and the mouse uses one AA battery, both included in the box along with the Dell Secure Link USB Receiver for immediate use out of the box.

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