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CP-PWR-CUBE-4
IP Phone power transformer for the 89/9900 phone series
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CP-PWR-CUBE-4 is a 600W, Modular, ATX power supply that delivers high efficiency with its 80 PLUS Gold certification and active PFC, operating across a wide input voltage range of 100–240V. Engineered with a 120mm fluid dynamic fan and built to strict standards, it incorporates robust protections including OCP, OVP, UVP, SCP, and OTP to ensure reliable performance under heavy loads.
Designed for demanding applications such as gaming, workstations, and server setups, CP-PWR-CUBE-4 provides dedicated connectivity with 1 ATX 24-Pin, 1 EPS 4+4 Pin, 2 PCIe (6+2) connectors, 6 SATA power connectors, and 3 Molex connectors. With a 90% efficiency rating, sleeved cables, and low noise levels, this power supply delivers exceptional build quality and consistent performance in even the most challenging environments.
CP-PWR-CUBE-4 price is $23.00, a 74.2% saving from the Cisco list price of $89.00. CP-PWR-CUBE-4 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CP-PWR-CUBE-4 for additional pricing. Browse the full Power Adapters series or explore all Cisco products.
To get the detailed certification, please go to the Compliance Center.
| CP-PWR-CUBE-4 |  CP-PWR-8821-KR= |  CP-682X-PWR-UR= |  CP-PWR-8821-NA= |  ASA5506H-PWR-AC= | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 600W | 850W | 1600W | 850W | 250W |
| Use Case | Gaming | Gaming / Workstation / Server | Gaming / Workstation | Workstation / Gaming | General Use |
| Form Factor | ATX | ATX | ATX | ATX | N/A |
| Modularity | Modular | Modular | Modular | Semi-Modular | Non-Modular |
| 80 PLUS Certification | Gold | Gold | Platinum | Gold | None |
| Rail Configuration | Single Rail | Multi Rail | Multi Rail | Single Rail | N/A |
| Certifications | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS, CE, FCC, UL, RoHS | 80 PLUS / CE / FCC / UL / ROHS | UL | CE / FCC / UL / RoHS |
| Remote Monitoring | No | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V | 100–240V |
| Hot-Swap Capable | No | No | No | No | No |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Fan Size | 120mm | 120mm | 140mm | 120mm | 80mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Dual Ball | Fluid Dynamic | Ball |
| Zero RPM Mode | Yes | Yes | Yes | Yes | No |
| Efficiency Rating | 90% | 92% | 96% | 94% | 80% |
| Protections | OCP / OVP / UVP / SCP / OTP | OCP, OVP, UVP, SCP, OTP | OCP, OVP, SCP, OTP | OCP, OVP, SCP | OCP / OVP / UVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | N/A |
| EPS (CPU) 4+4 Pin | 1 | 2 | 2 | 2 | N/A |
| PCIe (6+2) Connectors | 2 | 4 | 4 | 2 | N/A |
| SATA Power Connectors | 6 | 8 | 8 | 6 | N/A |
| Molex Connectors | 3 | 4 | 4 | 3 | N/A |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Sleeved | Sleeved | Sleeved | Sleeved | Flat |
| RGB Lighting | No | No | No | No | No |
| MTBF (Mean Time Between Failures) | 150,000 hours | 150,000 hours | 150,000 hours | 150,000 hours | 150,000 hours |
| Operating Temperature | 50°C | 50°C | 50°C | 50°C | 50°C |
| Product Name | CP-PWR-CUBE-4 | CP-PWR-8821-KR= | CP-682X-PWR-UR= | CP-PWR-8821-NA= | Cisco ASA5506H AC Power Supply |
| Height | 5 inches | 5.1 inches | 5.5 inches | 5.1 inches | 1.2 inches |
| Width | 6 inches | 6.3 inches | 6.5 inches | 5.9 inches | 5.0 inches |
| Depth | 10 inches | 9.8 inches | 8.0 inches | 7.5 inches | 5.3 inches |
| Weight | 8 lbs | 4.8 lbs | 7.2 lbs | 8.5 lbs | 2.5 lbs |
Reliable power transformer for Cisco 89/9900 series phones. Stable voltage and dependable performance.
Easy installation and consistent power supply for IP phones.
Durable Cisco power cube with reliable output.
Perfect replacement unit for enterprise phone systems.
Stable and efficient performance in office environment.
Professional-grade Cisco transformer with excellent reliability.
The Cisco CP-PWR-CUBE-4 is an inline power cube that converts 100–240V AC to 48V DC to power Cisco IP Phone 8900 and 9900 series devices.
The CP-PWR-CUBE-4 is fully compatible with Cisco IP Phone 8900 series (e.g., 8941, 8945) and 9900 series (e.g., 9951, 9971) models.
The CP-PWR-CUBE-4 accepts 100–240V AC at 50–60 Hz and delivers 48V DC at up to 0.6 A (28.8 W) output.
Yes, the CP-PWR-CUBE-4 is a genuine Cisco accessory manufactured to Cisco’s quality, safety and performance standards.
Plug the CP-PWR-CUBE-4 into an AC outlet, then insert its RJ-45 connector into the power port of your Cisco IP Phone—no software configuration is required.
No, the CP-PWR-CUBE-4 is designed for non-PoE switch ports; PoE switches provide power directly over Ethernet and do not require a power cube.
Yes, with 100–240V AC input, the CP-PWR-CUBE-4 supports global power standards when used with the correct regional plug adapter.
The CP-PWR-CUBE-4 includes a fixed RJ-45 cable that connects directly from the power cube to the Cisco IP Phone’s power port.
Verify the AC outlet, inspect the RJ-45 cable for damage, ensure a secure connection, and replace the cube if power is still not delivered.
The CP-PWR-CUBE-4 is UL-listed, CE-certified, RoHS-compliant and meets FCC safety and environmental requirements.
The CP-PWR-CUBE-4 measures 70×40×30 mm, weighs approximately 150 g and features a compact form factor for desk deployment.
Cisco provides a one-year limited warranty on the CP-PWR-CUBE-4 covering manufacturing defects under normal use.
Yes, the CP-PWR-CUBE-4 supports hot-swap replacement without requiring you to power down the Cisco IP Phone.
No, the CP-PWR-CUBE-4 does not include LED indicators; power status is displayed on the Cisco IP Phone screen.
The CP-PWR-CUBE-4 delivers higher output (28.8 W) and supports universal AC input, whereas the CP-PWR-CUBE-3 has lower wattage and region-specific voltage input.
The CP-PWR-CUBE-4 is available through authorized Cisco resellers, major online marketplaces and the official Cisco online store.