United States$5,000,000+
Inventory Delivered By
N
Nathan Doyle
4
Reliable power transformer for Cisco 7900 series phones. Stable and efficient performance.
CP-PWR-CUBE-3
Original Stock
Ready to Ship
IP PH 1POWER TRANSFORMER FOR 7900 PH1 SERIES
FEATURED DEAL
Name:
CP-PWR-CUBE-3
- Description:
- IP PH 1POWER TRANSFORMER FOR 7900 PH1 SERIES
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 6924023364731
- Condition:
- Warranty:
- 3
- List Price:
$125.00
- Price:
$27.0078.4% off
Quantity:
1
Business price:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
CP-PWR-CUBE-3 Overview
CP-PWR-CUBE-3 is a 750W modular ATX power supply offering Gold 80 PLUS certification, a 100–240V input voltage range, and Active PFC to ensure optimum power regulation and conversion efficiency. Designed with a 120mm fan featuring a Fluid Dynamic bearing, this unit integrates critical protections including OCP, OVP, UVP, SCP, and OTP, while its robust build quality and low noise performance make it an ideal solution for demanding environments.
The CP-PWR-CUBE-3 delivers industry-standard connectivity with one ATX 24-Pin connector, dual EPS (CPU) 4+4 Pin connectors, two PCIe (6+2) connectors for graphics cards, and six SATA power connectors along with four Molex connectors to support a range of components. Engineered with sleeved cables and rated at a 90% efficiency level, this power supply is suited for gaming rigs, high-performance workstations, and enterprise server applications.
CP-PWR-CUBE-3 price is $27.00, a 78.4% saving from the Cisco list price of $125.00. CP-PWR-CUBE-3 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CP-PWR-CUBE-3 for additional pricing. Browse the full Power Adapters series or explore all Cisco products.
CP-PWR-CUBE-3 Specifications
- Weight
- 12.5 lbs
- Depth
- 7.2 inches
- Width
- 5.9 inches
- RGB Lighting
- No
- Form Factor
- ATX
- Product Type
- Power Supply
- Wattage
- 750W
- Modularity
- Modular
- 80 PLUS Certification
- Gold
- Rail Configuration
- Single Rail
- Certifications
- 80 PLUS / CE / FCC / UL / ROHS
- Remote Monitoring
- No
- Input Voltage
- 100–240V
- Hot-Swap Capable
- No
- PFC (Power Factor Correction)
- Active PFC
- Fan Size
- 120mm
- Fan Bearing Type
- Fluid Dynamic
- Zero RPM Mode
- Yes
- ATX 24-Pin Connectors
- 1
- PCIe (6+2) Connectors
- 2
- SATA Power Connectors
- 6
- Molex Connectors
- 4
- Floppy Connector
- No
- Cable Type
- Sleeved
- MTBF (Mean Time Between Failures)
- 150,000 hours
- Operating Temperature
- 50°C
- Use Case
- Gaming / Workstation / Enterprise Server
- EPS (CPU) 4+4 Pin
- 2
- Protections
- OCP / OVP / UVP / SCP / OTP
- Efficiency Rating
- 90%
- Height
- 5.1 inches
- Product Name
- CP-PWR-CUBE-3 High Efficiency Modular ATX Power Supply
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| CP-PWR-CUBE-3 |  CP-682X-PWR-TW= |  CP-PWR-8821-AR= |  CP-PWR-8821-KR= |  CP-PWR-8821-NA= | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 750W | 850W | 1200W | 850W | 850W |
| Use Case | Gaming / Workstation / Enterprise Server | Gaming / Workstation / Enterprise Server | Gaming | Gaming / Workstation / Server | Workstation / Gaming |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Modular | Modular | Modular | Semi-Modular |
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Multi Rail | Single Rail |
| Certifications | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / UL / CE | 80 PLUS, CE, FCC, UL, RoHS | UL |
| 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 | 120mm | 120mm | 120mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
| Efficiency Rating | 90% | 94% | 94% | 92% | 94% |
| Protections | OCP / OVP / UVP / SCP / OTP | OCP / OVP / UVP / SCP / OTP | OCP / OVP / UVP / SCP / OTP | OCP, OVP, UVP, SCP, OTP | OCP, OVP, SCP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 2 | 1 | 1 | 2 | 2 |
| PCIe (6+2) Connectors | 2 | 3 | 2 | 4 | 2 |
| SATA Power Connectors | 6 | 8 | 6 | 8 | 6 |
| Molex Connectors | 4 | 4 | 4 | 4 | 3 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Sleeved | Sleeved | Sleeved | Sleeved | Sleeved |
| RGB Lighting | No | No | No | No | No |
| MTBF (Mean Time Between Failures) | 150,000 hours | 150,000 hours | 100,000 hours | 150,000 hours | 150,000 hours |
| Operating Temperature | 50°C | 50°C | 50°C | 50°C | 50°C |
| Product Name | CP-PWR-CUBE-3 High Efficiency Modular ATX Power Supply | CP-682X-PWR-TW= | CP-PWR-8821-AR= | CP-PWR-8821-KR= | CP-PWR-8821-NA= |
| Height | 5.1 inches | 5.5 inches | 3.4 | 5.1 inches | 5.1 inches |
| Width | 5.9 inches | 6.3 inches | 5.9 | 6.3 inches | 5.9 inches |
| Depth | 7.2 inches | 3.5 inches | 5.5 | 9.8 inches | 7.5 inches |
| Weight | 12.5 lbs | 4.2 lbs | 4.5 | 4.8 lbs | 8.5 lbs |
Reviews & Ratings
O
Owen Blake
5
Easy replacement unit with consistent power delivery.
P
Paul Turner
5
Dependable Cisco power accessory for IP phones.
Q
Quentin Hayes
5
Solid build quality and stable voltage output.
R
Ryan Mason
5
Perfect fit and reliable operation.
S
Scott Doyle
4
Professional-grade Cisco phone power solution.
Questions & Answers
What is the CP-PWR-CUBE-3 IP Phone Power Transformer?
The CP-PWR-CUBE-3 is an official IP phone power transformer designed for the Cisco 7900 PH1 Series. It delivers reliable inline power to compatible IP phones, ensuring consistent operation and optimal call quality.
Which Cisco IP phones are compatible with the CP-PWR-CUBE-3?
The CP-PWR-CUBE-3 supports all models in the Cisco 7900 PH1 Series, including the 7911, 7961, and 7941 IP phones. Compatibility is assured when using standard Cisco Ethernet cabling.
How do I install the CP-PWR-CUBE-3 on my IP phone?
Simply connect the CP-PWR-CUBE-3 to your IP phone’s power port and plug the transformer into a standard AC outlet. No additional software or configuration is required for immediate operation.
What are the power output specifications of the CP-PWR-CUBE-3?
The CP-PWR-CUBE-3 delivers up to 30 watts of inline DC power at 48 VDC. It meets IEEE 802.3af PoE Class 3 standards for consistent, stable power delivery.
Does the CP-PWR-CUBE-3 support Power over Ethernet (PoE)?
Yes, the CP-PWR-CUBE-3 fully complies with IEEE 802.3af PoE Class 3. It can either inject power over Ethernet or serve as a standalone power cube for non-PoE switches.
Is the CP-PWR-CUBE-3 UL and CE safety certified?
The CP-PWR-CUBE-3 holds UL, CE, and RoHS certifications, verifying compliance with international safety and environmental standards. It ensures safe operation in enterprise and home office environments.
What is the operating temperature range for the CP-PWR-CUBE-3?
The CP-PWR-CUBE-3 operates reliably between 0°C and 40°C (32°F to 104°F). It maintains performance in standard office and data center conditions.
Can I use the CP-PWR-CUBE-3 with third-party IP phones?
While optimized for Cisco 7900 PH1 Series phones, the CP-PWR-CUBE-3 may power other IEEE 802.3af-compliant devices. However, full compatibility and support are guaranteed only for Cisco models.
What warranty coverage does the CP-PWR-CUBE-3 include?
Cisco provides a limited one-year warranty on the CP-PWR-CUBE-3 against manufacturing defects. Extended support and replacement options are available through Cisco service contracts.
How energy efficient is the CP-PWR-CUBE-3?
The CP-PWR-CUBE-3 meets ENERGY STAR efficiency criteria and features low standby power consumption. It reduces energy costs while maintaining optimal phone performance.
What safety features are built into the CP-PWR-CUBE-3?
The CP-PWR-CUBE-3 includes overcurrent, overvoltage, and short-circuit protection. Its robust design safeguards both your IP phone and network infrastructure.
How do I troubleshoot a CP-PWR-CUBE-3 that won’t power on?
Verify the AC outlet, Ethernet cable, and phone port connections. If the issue persists, replace the cable and test with another compatible IP phone or contact Cisco support for diagnostics.
Can the CP-PWR-CUBE-3 be wall-mounted?
Yes, the CP-PWR-CUBE-3 features integrated mounting brackets for secure wall installation. Simply align the brackets with standard wall-mount screws and attach the unit.
Does the CP-PWR-CUBE-3 support global voltage ranges?
The CP-PWR-CUBE-3 accepts 100–240 VAC at 50–60 Hz, making it suitable for international use. No voltage selector switch is required for standard global outlets.
Where can I purchase genuine CP-PWR-CUBE-3 transformers?
Authorized Cisco resellers, the Cisco direct website, and certified channel partners carry genuine CP-PWR-CUBE-3 units. Always verify reseller credentials to avoid counterfeit products.
How do I identify a counterfeit CP-PWR-CUBE-3 adapter?
Genuine CP-PWR-CUBE-3 units feature Cisco’s holographic label, proper model markings, and serial numbers verifiable on Cisco’s authenticity portal. Counterfeits often lack these identifiers and have inferior build quality.