Cisco CP-PWR-CUBE-3 Power Cube 3 Power Supply for Cisco 7800 & 7900 Series IP Phones – 48V OEM Adapter

The Cisco Power Cube 3 (CP-PWR-CUBE-3) provides reliable 48V DC power for Cisco 7800 and 7900 Series IP Phones. It’s the official OEM power adapter and an ideal PoE alternative for offices or setups where Power over Ethernet is unavailable. Designed by Cisco for enterprise-grade stability, it ensures crystal-clear VoIP calls and consistent performance.

This compact, plug-and-play power cube is trusted by IT teams, call centers, and home offices for dependable operation. It supports a wide range of Cisco Unified IP Phones, offering simple setup, quiet operation, and long-term reliability.

Key Features & Benefits

• Genuine Cisco OEM Power: Ensures full compatibility and reliable uptime.
• 48V Output: Stable voltage for optimal voice clarity and device longevity.
• PoE Alternative: Use when PoE is unavailable or not desired.
• Plug-and-Play Setup: Easy installation—no tools required.
• Compact Design: Fits any workspace; ideal for desk or wall outlet use.
• Enterprise-Ready: Suitable for mass deployments and IT-managed environments.
• Home Office Friendly: Perfect for powering single Cisco desk phones.
• High Compatibility: Works with most Cisco 7800 and 7900 Series models.

Specifications

• Brand: Cisco
• Model: Power Cube 3
• Part Number: CP-PWR-CUBE-3
• Input: 100–240V AC, 50/60Hz
• Output: 48V DC, 0.38A (approx. 18W)
• Type: Power supply adapter for Cisco Unified IP Phones
• Condition: Brand New

Compatible Cisco IP Phone Models

• Cisco 7800 Series: 7811, 7821, 7841, 7861, others
• Cisco 7900 Series: 7902G, 7905G, 7911G, 7912G, 7941G, 7942G, 7961G, 7975G, and more

Tip: Check your IP phone model before purchase to confirm compatibility.

Frequently Asked Questions

• Does this work without PoE?
  Yes — it’s specifically made to power Cisco phones without PoE support.
• Is this an original Cisco product?
  Yes, this is the genuine Cisco CP-PWR-CUBE-3 OEM adapter.
• Where can I use it?
  Ideal for offices, call centers, schools, healthcare, or home setups.
• Do I need a power cord?
  Yes. Use a compatible AC power cord for your region.

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