United States$5,000,000+
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Chris Bennett
5
Useful power injector for legacy phones. Simple to deploy and works reliably without configuration.
CP-PWR-INJ
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IP Phone Power Injector For 7900 Series Phones
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Name:
CP-PWR-INJ
- Description:
- IP Phone Power Injector For 7900 Series Phones
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 4054318039524
- Condition:
- Warranty:
- 3
- List Price:
$150.00
- Price:
$21.0086% off
Quantity:
1
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CP-PWR-INJ Overview
CP-PWR-INJ is an 850W, fully modular ATX power supply known for its high efficiency and premium build quality. It features an 80 PLUS Gold certification, supports a wide input voltage range of 100–240V, and utilizes Active PFC to ensure stable power delivery even under full load. The unit is outfitted with a 120mm fan using a dual ball bearing design that enhances cooling and minimizes noise, while its array of built-in protections—including OCP, OVP, and SCP—safeguards critical components.
CP-PWR-INJ offers a comprehensive connector suite with a 24-pin ATX connector, dual 4+4-pin EPS connectors for the CPU, three 6+2-pin PCIe connectors for GPUs, six SATA power connectors, and four Molex connectors, all paired with high-quality sleeved cables for optimal management. With an efficiency rating of 92% and quiet operation thanks to its intelligent zero RPM mode, this power supply is ideally suited for demanding gaming rigs, workstations, and even server applications.
CP-PWR-INJ price is $21.00, a 86% saving from the Cisco list price of $150.00. CP-PWR-INJ is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CP-PWR-INJ for additional pricing. Browse the full Power Supplies For Ip Phones series or explore all Cisco products.
CP-PWR-INJ Specifications
- Product Type
- Power Supply
- Wattage
- 850W
- Use Case
- Gaming
- Form Factor
- ATX
- Modularity
- Modular
- 80 PLUS Certification
- Gold
- Rail Configuration
- Single Rail
- Certifications
- 80 PLUS
- Remote Monitoring
- No
- Input Voltage
- 100–240V
- Hot-Swap Capable
- No
- PFC (Power Factor Correction)
- Active PFC
- Fan Size
- 120mm
- Fan Bearing Type
- Dual Ball
- Zero RPM Mode
- Yes
- Efficiency Rating
- 92%
- Protections
- OCP, OVP, SCP
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 2
- PCIe (6+2) Connectors
- 3
- SATA Power Connectors
- 6
- Molex Connectors
- 4
- Floppy Connector
- No
- Cable Type
- Sleeved
- RGB Lighting
- No
- MTBF (Mean Time Between Failures)
- 150,000 hours
- Operating Temperature
- 50°C
- Product Name
- CP-PWR-INJ 850W Modular ATX Power Supply
- Height
- 5.5 inches
- Width
- 8.6 inches
- Depth
- 6.3 inches
- Weight
- 6.5 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| CP-PWR-INJ |  CP-PWR-CORD-UK= |  CP-DSKCH-7925G-BUN |  CP-PWR-DC8821-UK= |  CP-PWR-DC8821-CE= | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 850W | 750W | 850W | 850W | 850W |
| Use Case | Gaming | Gaming / Workstation | Gaming / Workstation / General Use | Gaming | Gaming |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Modular | Modular | Modular | Modular |
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| Rail Configuration | Single Rail | Multi Rail | Single Rail | Single Rail | Multi Rail |
| Certifications | 80 PLUS | CE / FCC / UL / RoHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS |
| Remote Monitoring | No | No | N/A | No | N/A |
| 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 | Dual Ball | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
| Efficiency Rating | 92% | 90% | 92% | 92% | 92% |
| Protections | OCP, OVP, SCP | OCP / OVP / SCP / OTP | OCP / OVP / SCP / OTP | OCP / OVP / SCP / OTP | OCP / OVP / UVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 2 | 1 | 2 | 1 | 1 |
| PCIe (6+2) Connectors | 3 | 2 | 4 | 2 | 2 |
| SATA Power Connectors | 6 | 6 | 8 | 6 | 6 |
| Molex Connectors | 4 | 4 | 4 | 3 | 2 |
| 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 | 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-INJ 850W Modular ATX Power Supply | CP-PWR-CORD-UK= | CP-DSKCH-7925G-BUN | CP-PWR-DC8821-UK= High Efficiency Modular ATX Power Supply | CP-PWR-DC8821-CE= |
| Height | 5.5 inches | 4.5 inches | 5.0 inches | 3.39 inches | 5.5 inches |
| Width | 8.6 inches | 6.0 inches | 7.0 inches | 5.91 inches | 6.3 inches |
| Depth | 6.3 inches | 5.5 inches | 6.5 inches | 5.51 inches | 11 inches |
| Weight | 6.5 lbs | 3.2 lbs | 4.5 lbs | 4.5 lbs | 4 lbs |
Reviews & Ratings
L
Linda Park
4
Solved our power issue instantly. Phones powered up smoothly with no interruptions.
R
Rashid Ahmed
4
Good solution when PoE is unavailable. Stable performance and easy installation.
K
Kevin Liu
4
Compact and reliable injector. Does exactly what it is designed to do.
A
Anna Kowalski
4
Practical accessory for older setups. Consistent power delivery throughout the day.
Questions & Answers
What is the CP-PWR-INJ IP Phone Power Injector?
The CP-PWR-INJ is a Cisco inline power injector designed to deliver PoE to Cisco 7900 Series IP phones over a standard Ethernet cable without requiring a PoE switch.
Which Cisco 7900 Series phones are compatible with the CP-PWR-INJ?
The CP-PWR-INJ is compatible with all Cisco 7900 Series IP phones, including models 7940, 7960, 7960G, 7970, and 7975.
How do I install the CP-PWR-INJ with my 7900 Series phone?
Connect the power injector to an AC outlet, plug your Ethernet switch into the Data Port, then connect the IP phone to the PoE Port using a standard Cat5e or higher cable.
Does the CP-PWR-INJ support IEEE 802.3af Power over Ethernet?
Yes, the CP-PWR-INJ fully complies with IEEE 802.3af PoE standards, providing up to 15.4 watts of power over Ethernet.
What is the maximum cable distance for the CP-PWR-INJ?
The CP-PWR-INJ supports a maximum Ethernet cable length of 100 meters (328 feet) between the injector and the IP phone, per IEEE 802.3af guidelines.
Does the CP-PWR-INJ require an external power adapter?
No separate adapter is needed; the CP-PWR-INJ includes a built-in power supply and ships with a universal AC power cord.
What are the LED indicators on the CP-PWR-INJ?
Two front-panel LEDs indicate Power (green when operational) and PoE Status (amber when delivering power to the IP phone).
What power output specifications does the CP-PWR-INJ provide?
The injector supplies 48 V DC at up to 350 mA per IEEE 802.3af, delivering a total of 15.4 W to connected Cisco 7900 Series phones.
Can the CP-PWR-INJ power multiple IP phones simultaneously?
No, each CP-PWR-INJ is designed to power a single Cisco 7900 Series IP phone. Additional units are required for multiple phones.
Is the CP-PWR-INJ UL and CE certified?
Yes, the CP-PWR-INJ meets UL 60950-1 and CE safety standards for electrical and electromagnetic compatibility.
What is included in the CP-PWR-INJ package?
Each package includes one CP-PWR-INJ inline power injector, one universal AC power cord (region-specific), and quick-start installation instructions.
Does the CP-PWR-INJ support data passthrough to the IP phone?
Yes, it transparently passes 10/100 Mbps Ethernet data from your network switch to the Cisco 7900 Series IP phone while injecting power.
Can the CP-PWR-INJ be wall-mounted?
Yes, the unit features mounting slots on the chassis for secure wall-mount installation near network or phone outlets.
What is the operating temperature range for the CP-PWR-INJ?
The injector operates reliably in environments from 0 °C to 40 °C (32 °F to 104 °F) with 10%–90% non-condensing humidity.
What warranty does the CP-PWR-INJ come with?
Cisco provides a one-year limited hardware warranty covering defects in materials and workmanship under normal use.
How do I troubleshoot power delivery issues with the CP-PWR-INJ?
Verify AC outlet power, check Ethernet cable integrity, confirm LED status (green Power, amber PoE), and ensure your phone model is supported.
Can the CP-PWR-INJ power non-Cisco IP phones?
It is optimized for Cisco 7900 Series IP phones. While IEEE 802.3af-compliant devices may work, Cisco does not guarantee performance or support.