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TP-Link TL-PI30G Gigabit PoE+ Injector Adapter — main product image
TP-Link TL-PI30G Gigabit PoE+ Injector Adapter
TP-Link TL-PI30G Gigabit PoE+ Injector Adapter
TP-Link TL-PI30G Gigabit PoE+ Injector Adapter
TP-Link TL-PI30G Gigabit PoE+ Injector Adapter
TP-Link TL-PI30G Gigabit PoE+ Injector Adapter
TP-Link TL-PI30G Gigabit PoE+ Injector Adapter
TP-Link

TP-Link TL-PI30G Gigabit PoE+ Injector Adapter

★★★★★4.7 (54819 reviews)
30W4W

Power any PoE device over a single Ethernet cable with this plug-and-play Gigabit PoE+ injector delivering up to 30W.

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Overview

The TP-Link TL-PI30G Gigabit PoE+ Injector is designed to add Power over Ethernet capability to any existing network without replacing your current switch or infrastructure. It accepts a standard Ethernet connection on its input port, combines it with power from its included adapter, and outputs both data and up to 30W of electrical power on a single Ethernet cable to the connected device. This makes it an efficient solution for powering IP cameras, wireless access points, VoIP phones, and other 802.3at/af-compliant hardware in locations where running a separate power line would be impractical or costly.

Both Ethernet ports operate at Gigabit speed, ensuring no bandwidth compromise when injecting power. The Auto Detect feature automatically identifies whether the connected device is PoE-capable before delivering power, which protects non-PoE equipment from damage. With support for cable runs up to 100 meters and a completely configuration-free setup, the TL-PI30G is a practical, single-purpose tool for extending PoE to exactly where you need it.

Key Features

𝑪𝒐𝒏𝒗𝒆𝒓𝒕 𝑵𝒐𝒏-𝑷𝒐𝑬 𝒕𝒐 𝑷𝒐𝑬 - With no need to replace your existing non-PoE switch/device, you can easily have PoE enabled with the use of TL-PI30G

𝑯𝒊𝒈𝒉 𝑺𝒑𝒆𝒆𝒅 𝑮𝒊𝒈𝒂𝒃𝒊𝒕 𝑷𝒐𝒓𝒕𝒔 - Experience lightning-fast wired speeds with 1× Gigabit Ethernet Input Port plus 1× Gigabit Ethernet Output port

𝟖𝟎𝟐.𝟑𝒂𝒕/𝒂𝒇 𝑷𝒐𝑬 𝑪𝒐𝒎𝒑𝒍𝒊𝒂𝒏𝒕 - TL-PI30G supplies power and data via one single ethernet cable to 802.3 at/af PoE devices and expands network to areas with no power lines or outlets

𝑷𝒍𝒖𝒈 𝒂𝒏𝒅 𝑷𝒍𝒂𝒚 𝑰𝒏𝒔𝒕𝒂𝒍𝒍𝒂𝒕𝒊𝒐𝒏 - Easy setup with no software installation or configuration needed

𝑳𝒐𝒏𝒈 𝑹𝒂𝒏𝒈𝒆 𝑻𝒓𝒂𝒏𝒔𝒎𝒊𝒔𝒔𝒊𝒐𝒏 - Deliver Power up to 100 meters (328ft.), perfect for IP cameras or access point deployment in large areas

𝑨𝒖𝒕𝒐 𝑫𝒆𝒕𝒆𝒄𝒕 𝑷𝒐𝒘𝒆𝒓 - With Auto Detect technology,TL-PI30G delivers up to 30W to a PoEplus device with backwards compatibility for 802.3af PoE (15.4W) devices

Specifications

Standard Compliance
IEEE 802.3at/af
Maximum Power Output
30W (PoE+)
Data Ports
1× Gigabit Ethernet Input, 1× Gigabit Ethernet Output
Data Speed
10/100/1000 Mbps
Transmission Distance
Up to 100 meters (328 ft)
Installation
Plug and Play
Power Detection
Auto Detect
Brand
TP-Link
Model
TL-PI30G

TP-Link Gigabit Ethernet Network Switch Family (5/8/16/24/48-Port) — Editorial Review & Buying Guide

The TP-Link TL-SG family covers TP-Link's entire mainstream unmanaged + smart-managed gigabit Ethernet switch line — TL-SG105 (5-port unmanaged), TL-SG108 / TL-SG108E (8-port unmanaged / smart), TL-SG116E (16-port smart), TL-SG1024S (24-port rackmount), TL-SG1048 (48-port rackmount), plus the multi-gigabit TL-SG105S-M2 / TL-SG108S-M2 (5/8-port 2.5Gbps) and managed FS308G variants. Per TP-Link's official Easy Smart Switch product family page, the line covers home + small office network upgrades from 100Mbps fast ethernet to 1Gbps / 2.5Gbps speeds, supports IEEE 802.3 / 802.3u / 802.3ab / 802.3x flow control, and includes auto-MDI/MDIX for cable polarity tolerance.

What the TP-Link TL-SG Family Specifically Wins

  • Gigabit (1000Mbps) speed across all ports — vs older 100Mbps switches, gigabit handles 4K streaming + multi-device home use + small office workflows comfortably
  • Plug-and-play unmanaged switches (TL-SG105, TL-SG108) — no configuration needed; plug cables in + works immediately
  • Smart-managed variants (TL-SG108E, TL-SG116E) — VLAN, QoS, port mirroring, link aggregation via web UI for users wanting basic management
  • Rackmount form factor (TL-SG1024S, TL-SG1048) — fits standard 1U rack slot. For larger home/office wiring closet
  • 2.5Gbps multi-gigabit variants (TL-SG105S-M2, TL-SG108S-M2) — for users with 2.5GbE-capable devices (modern NAS, WiFi 6E APs, gaming PCs) leveraging beyond gigabit
  • Auto-MDI/MDIX — automatically detects cable polarity; works with both straight-through and crossover cables
  • Metal chassis on most models — improved durability + heat dissipation vs plastic competitors
  • Wall-mountable mounting holes on rear — for permanent installations
  • Up to 6 hours of UPS-protected uptime in 5-port models — low power consumption means small UPS can sustain
  • Wide platform compatibility — works with any TCP/IP-capable device on the network

Where the TP-Link TL-SG Specifically Fits

  • Home network expansion — adding more ethernet ports to a home router that's run out of LAN ports (typical router has 4 LAN ports)
  • Home office / small business workgroup — 8-16 ethernet devices across a single switch
  • Workshop / garage networking — extending ethernet to a remote location with multiple devices
  • Conference room / classroom AV system — multiple ethernet-connected devices (projectors, IP cameras, IP phones)
  • Home theater / media room — Apple TV + console + Blu-ray + smart TV all on wired ethernet
  • NAS-connected workgroup — switching between NAS + multiple workstations
  • Server closet wiring — 24/48-port rackmount switches
  • Gaming PC ethernet setup — wired ethernet for low-latency gaming (better than Wi-Fi)
  • Surveillance / IP camera deployment — multiple PoE+ or non-PoE cameras to a single NVR
  • VoIP phone system rollout — switching between IP phones + traditional PSTN
  • Hotel / hospitality network — switch in each room for in-room ethernet

Honest Limits Buyers Should Know

  • Unmanaged switches (TL-SG105/108) cannot do VLAN / QoS. For network segmentation, multicast filtering, quality-of-service, step to smart-managed (TL-SG108E / TL-SG116E / FS308G) or fully-managed (TL-SG2008 / SG3210 series)
  • Not PoE-capable on most models. Standard TL-SG108 does NOT deliver power over ethernet. For PoE (powering IP cameras, IP phones, WiFi APs), use TP-Link's PoE variants (TL-SG1008P, TL-SG1218MP)
  • Multi-gigabit (2.5GbE) variants are limited. TL-SG105S-M2 / TL-SG108S-M2 are 2.5GbE; for 5GbE / 10GbE, step to TP-Link Omada or higher-tier MikroTik / Netgear pro switches
  • Rackmount switches (1024S, 1048) need 1U rack space. No rack? Use wall-mount or shelf placement
  • No web management on TL-SG105/108 (unmanaged). Smart-managed E-suffix variants have web UI; pure unmanaged switches have no configuration interface
  • Fan noise on rackmount switches. 24 / 48-port rackmount switches have small fans that produce audible whine in quiet rooms. For silent office deployment, prefer fanless 8/16-port models
  • Power consumption scales with port count. 5-port: ~5W; 48-port: ~30W. Calculate UPS / data center load
  • Limited buffer memory on cheaper models. Heavy multicast / broadcast networks can experience packet loss on entry-level switches. For high-traffic environments, step up to TP-Link Omada SG3210 / Cisco SG350 series
  • No firmware updates on truly unmanaged switches. Smart-managed switches receive firmware updates; pure unmanaged switches do not
  • Not for ISP-edge / public-facing network. These are LAN switches, not WAN routers. They cannot do DHCP / NAT / firewall functions

Where Buyers Should Look Elsewhere

  • 10GbE / multi-gigabit switching → TP-Link Omada SG3424XF, MikroTik CRS305, Netgear MS510TX, QNAP QSW-M408
  • PoE+ for cameras / phones / APs → TP-Link TL-SG1008P, TL-SG1218MP, TL-SG2210PP-M2
  • Enterprise managed switches → Cisco SG350 / SG500 series, Aruba Mobility 4400, MikroTik CRS328
  • Pure budget unmanaged → NETGEAR GS105 / GS108 (similar specs, slightly cheaper)
  • Fully-managed L3 switching → MikroTik CRS series, Cisco SG350, Juniper EX series
  • Fiber / SFP+ uplinks → MikroTik CRS305 (SFP+ ports), TP-Link Omada SG3210 series
  • Industrial / Power-over-Ethernet PoE++ (90W+) → industrial-grade switches (Phoenix Contact, Moxa, Hirschmann)

Sources & Citations

  1. TP-Link, "Easy Smart Switch product family page," tp-link.com (accessed 2026-05-18)
  2. SmallNetBuilder, "Network switch buying guide and reviews," smallnetbuilder.com (accessed 2026-05-18)
  3. Tom's Hardware, "Gigabit ethernet switch comparison," tomshardware.com (accessed 2026-05-18)
  4. ServeTheHome, "Network switch reviews and benchmarks," servethehome.com (accessed 2026-05-18)

Last verified: 2026-05-18

Now that you've seen the details — ready to take a closer look?

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Pros & Cons

👍 Pros

  • Delivers up to 30W over a single cable, eliminating the need for a separate power source at the device location
  • Plug-and-play operation requires zero software or configuration
  • Auto Detect technology protects non-PoE devices from receiving unwanted power
  • Supports full Gigabit throughput on both input and output ports
  • Transmits power and data up to 100 meters, covering long cable runs

👎 Cons

  • Only provides a single PoE output port, so you need one injector per device
  • Does not pass through PoE from an upstream PoE switch — it generates its own power only
  • The external power adapter adds bulk compared to an inline midspan without a brick
  • No mounting bracket included for permanent wall or rack installation

Frequently Asked Questions

The TL-PI30G delivers up to 30W of power to 802.3at (PoE+) devices, with backwards compatibility for 802.3af devices at up to 15.4W.
No. The TL-PI30G is fully plug and play — just connect the cables and it begins delivering power and data immediately.
It supports transmission distances up to 100 meters (328 feet), making it suitable for deploying devices in large or spread-out areas.
Yes. The Auto Detect feature senses whether the connected device requires PoE power. If a non-PoE device is connected, data passes through without delivering power, protecting the device.
Yes. Both the input and output ports are Gigabit Ethernet, so there is no speed bottleneck when injecting power.

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