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Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.
StarTech POEINJ4G-US 4-Port Gigabit PoE+ Injector
Overview
The StarTech POEINJ4G-US is a 4-port Gigabit midspan PoE+ injector designed to deliver both data and power over a single Ethernet cable. This unit is ideal for powering devices such as IP cameras, VoIP phones, and wireless access points in environments where existing network infrastructure lacks native PoE capabilities or requires additional power budget. Its compact, wall-mountable design makes it suitable for discreet installation in network closets or near endpoints, simplifying deployments and reducing cable clutter. The POEINJ4G-US supports IEEE 802.3at and 802.3af Power over Ethernet standards, ensuring compatibility with a wide range of PoE-enabled devices.
Compatibility
This injector is compatible with any IEEE 802.3at or 802.3af compliant network device requiring up to 30W of power per port. It functions with standard Gigabit Ethernet networks and is suitable for use with various IP surveillance cameras, wireless access points, and VoIP phones from manufacturers like Axis, Hikvision, Dahua, Ubiquiti, and Cisco, provided they adhere to PoE standards.
Installation Notes
Requires two Ethernet cables per device: one from the network switch to the injector's data port, and another from the injector's PoE port to the end device. Power is supplied via the included AC adapter. Ensure the total power draw of connected devices does not exceed the injector's total output capacity. The unit is designed for wall mounting using the integrated brackets.
What's in the Box
- 1x 4-Port Gigabit PoE+ Injector
- 1x AC Power Adapter
- 1x Power Cord
- 1x Wall-Mounting Bracket
- 1x Quick Start Guide
StarTech 4-PORT Gigabit Midspan POE+ Injector - POEINJ4G-US
Build Your Complete System
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
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System Design, Deployment & Technical Support
Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.
Fixed scope • Fixed price
System Design Assistance
- Get help validating product compatibility
- Coverage requirements
- Storage planning and deployment architecture before you buy.
Deployment & Configuration Support
- Access fixed-scope support for rollout planning
- User setup guidance
- Migration and system standardization across single-site or multi-site deployments
Guides, Tools & Calculators
- PoE requirements
- Storage retention
- Camera selection and deployment methodology