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Injector delivered reliable power to connected devices.
J9407B
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HP 1-port Power Injector
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J9407B
- Description:
- HP 1-port Power Injector
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J9407B Overview
J9407B is a high-performance PoE injector featuring 4 Ports that supports IEEE 802.3af/at/bt standards with high output wattage designed to power demanding devices. It operates on an input voltage range of 100–240V AC and provides a stable output voltage of 48V, making it ideal for devices such as IP phones, wireless access points, and IP cameras, with integrated data and power passthrough that ensures seamless compatibility with both unmanaged and managed switches.
J9407B is engineered for versatile applications including SMB networking, industrial automation, and remote IP camera power, while featuring a secure rackmount design and high power efficiency of up to 90%. It also includes surge protection to safeguard critical network components, making it a dependable choice for modern network infrastructures.
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J9407B Specifications
- Product Type
- PoE Injector
- PoE Standard
- IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt
- Number of Ports
- 4 Ports
- Use Case
- SMB Networking
- Compatible Devices
- IP Cameras / Wireless Access Points / IP Phones
- Data Rate
- 10/100/1000 Mbps
- Input Voltage
- 100–240V AC
- Output Voltage
- 48V
- Connector Type
- RJ-45
- Mounting Type
- Rackmount
- Operating Temperature
- -10–60°C
- Surge Protection
- Yes
- LED Indicators
- Power / PoE / Activity
- Housing Material
- Metal
- Color
- Black
- Power Efficiency
- 90%
- Product Name
- J9407B PoE Injector
- Height
- 1.75 inches
- Width
- 19 inches
- Depth
- 10 inches
- Weight
- 5 lbs
J9407B Use Case
Rapid Deployment of Remote Wireless Access Points with J9407B-HP 1-port Power Injector
In a multi-branch enterprise lacking PoE switches, network engineers use the J9407B-HP 1-port Power Injector to deliver 802.3at-compliant PoE over Cat5e to remote Wi-Fi access points. Outcome: Accelerated deployment, zero switch upgrades, and flexible AP placement reduce rollout time by 50% and minimize infrastructure costs.
Scalable IP Surveillance System Expansion Using J9407B-HP 1-port Power Injector
A retail chain extends its outdoor IP camera network without upgrading core switches by deploying J9407B-HP 1-port Power Injectors at perimeter locations. Outcome: Reliable PoE power ensures 24/7 HD video streaming, reduces cabling complexity, and enhances loss prevention with future-proof, high-availability security coverage.
Efficient VoIP Phone Integration in Legacy Networks via J9407B-HP 1-port Power Injector
During an office retrofit, IT teams leverage the J9407B-HP 1-port Power Injector to add PoE support to unmanaged switches for IP phones. Outcome: Centralized power delivery eliminates bulky AC adapters, simplifies wiring, and delivers cost savings while boosting unified communications reliability.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| J9407B |  J9867A |  JW627A | |
|---|---|---|---|
| Product Type | PoE Injector | PoE Injector | PoE Switch |
| PoE Standard | IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt | IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt | IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt |
| Number of Ports | 4 Ports | 2 Ports | 8 Ports |
| Use Case | SMB Networking | Surveillance / SMB Networking / Industrial PoE / Home Automation / General Purpose | SMB Networking / Industrial PoE / Remote IP Camera Power |
| Compatible Devices | IP Cameras / Wireless Access Points / IP Phones | IP Cameras / Wireless Access Points / IP Phones / IoT Devices | IP Phones / Wireless Access Points / IP Cameras |
| Data Rate | 10/100/1000 Mbps | 10/100/1000 Mbps | 10/100/1000 Mbps |
| Input Voltage | 100–240V AC | 100–240V AC | 100–240V AC |
| Output Voltage | 48V | 48V | 48V |
| Connector Type | RJ-45 | RJ-45 | RJ-45 |
| Mounting Type | Rackmount | Rackmount | Rackmount |
| Operating Temperature | -10–60°C | 0–50°C | 0–40°C |
| Surge Protection | Yes | Yes | Yes |
| LED Indicators | Power / PoE / Activity | Power / PoE / Activity | Power / PoE / Activity |
| Housing Material | Metal | Metal | Metal |
| Color | Black | Black | Black |
| Power Efficiency | 90% | 95% | 95% |
| Product Name | J9407B PoE Injector | J9867A PoE Injector | JW627A Industrial PoE Switch |
| Height | 1.75 inches | 1.5 inches | 1.75 inches |
| Width | 19 inches | 6 inches | 17.2 inches |
| Depth | 10 inches | 5 inches | 9.8 inches |
| Weight | 5 lbs | 2 lbs | 4.3 lbs |
Reviews & Ratings
B
Bilal Tanveer
5
Compact and easy to deploy.
E
Ethan Morris
5
Worked instantly without configuration.
S
Sami Rantanen
4
Stable operation in production.
D
Daniel Price
4
Good value for PoE needs.
Questions & Answers
What is the HP 1-port Power Injector J9407B?
The HP 1-port Power Injector J9407B is a standalone PoE midspan device that delivers up to 30 W of IEEE 802.3af/at Power over Ethernet to a single network endpoint, enabling powered operation of IP phones, cameras, and wireless access points without a local power adapter.
Which network devices are compatible with the HP J9407B Power Injector?
The HP J9407B supports all IEEE 802.3af (PoE) and 802.3at (PoE+) compliant devices, including IP phones, wireless access points, security cameras, VoIP handsets, and other low-voltage Ethernet-powered equipment.
What power specifications does the J9407B support?
The HP J9407B delivers 48 V DC at up to 0.625 A (30 W) per port, fully compliant with IEEE 802.3af/at standards to ensure efficient power management and broad device compatibility.
How do I install the HP 1-port Power Injector J9407B?
To install, connect the injector’s data input to your network switch or router, then link the PoE output to your device using a Cat5e or higher cable. Power on the injector and confirm the link LED is steady green.
Can the HP J9407B be rack-mounted or wall-mounted?
Yes, the HP J9407B includes a detachable mounting bracket for both 19-inch rack trays and standard wall installations, offering flexible deployment near network devices or in wiring closets.
What type of Ethernet cable is required for the HP J9407B?
Use Cat5e or higher twisted-pair Ethernet cables for optimal PoE performance. For runs longer than 100 m, Cat6 or Cat6a is recommended to reduce voltage drop and maintain data integrity.
How can I verify that the J9407B is supplying power correctly?
Check the injector’s LED indicator: a steady green LED confirms active PoE output. You can also verify power delivery by confirming functionality of the connected powered device or using an inline PoE tester.
Does the HP J9407B support PoE+ and PoE++ standards?
The HP J9407B supports IEEE 802.3af (PoE) and 802.3at (PoE+) standards, delivering up to 30 W. It does not support the higher power levels defined in IEEE 802.3bt (PoE++).
What safety and regulatory certifications does the HP J9407B have?
The HP J9407B is UL Listed, CE Marked, and RoHS compliant, meeting global safety, electromagnetic compatibility, and environmental regulations for reliable network infrastructure deployments.
What is the warranty period for the HP 1-port Power Injector J9407B?
The HP J9407B includes a one-year limited warranty covering defects in materials and workmanship. Extended support and warranty upgrade options are available through HP Care Pack services.
How do I troubleshoot common issues with the HP J9407B?
Ensure the input power source is active, verify cable integrity, confirm the LED status, and test with an alternative PoE switch or injector. If issues persist, contact HP Support for advanced diagnostics.
Can I deploy multiple HP J9407B injectors in the same network?
Yes. Each HP J9407B operates independently, allowing you to power multiple PoE devices across your network without interference or configuration conflicts.
What is the maximum cable length for reliable PoE delivery with the J9407B?
Maintain a maximum Ethernet cable length of 100 m (328 ft) from the HP J9407B to the powered device for optimal performance. For longer distances, use PoE extenders or higher-gauge cabling.
How energy-efficient is the HP 1-port Power Injector J9407B?
The HP J9407B features high-efficiency switching technology with over 85% power conversion efficiency, minimizing energy loss and heat generation during continuous PoE operation.
Where can I purchase the HP 1-port Power Injector J9407B?
The HP J9407B is available through authorized HP channel partners, leading online retailers, and the HP Official Store. Visit the HP website to locate distributors and obtain pricing details.