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1 x Network (RJ-45) - Multi-mode, Single-mode - Gigabit Ethernet - 1000Base-T, 1000Base-SX/LX - 2 Gbit/s - 2 x Expansion Slots - SFP (mini-GBIC) - 2 x SFP Slots - Power Adapter - Standalone, Compact
$76.70
Special order — estimated available by September 10, 2026.
Genuine TRENDnet through authorized distribution — TAA country-of-origin verified and NDAA §889 screened before checkout.
• DEVICE INTERFACE: 1 x Gigabit RJ-45 port (10/100/1000Mbps); 2 x Gigabit SFP ports (100/1000Mbps); LED Indicators
• NDAA + TAA COMPLIANT: With NDAA and TAA compliant products, you can plan and install the networking solutions that government customers demand today. (U.S. and Canada onl
• RELIABLE TECH SUPPORT: Our team of advisors, support and tech experts are English speaking, and available for all your needs during normal business hours. We take pride in being there for our customers.
• REDUNDANT SFP UPLINK: The dual SFP ports allow for uplink redundancy if a link on one of the SFP ports fails.
• DUAL GIGABIT SFP: Converts a 1000BASE-T (Copper 1Gbps) Ethernet connection to two 1G BASE-SX/LX (Fiber) SFP media connection, and vice versa
• FANLESS: Fanless design on the dual SFP media converter lowers energy consumption and eliminates operating noise
• COMPACT DESIGN: Small, compact, and lightweight metal housing of the redundant SFP converter provides greater installation f lexibility
• SFP SUPPORT: The dual SFP media converter is compatible with multi-mode and single mode transmissions
TRENDnet's compact 1000BASE-T to Dual SFP Fiber Media Converter with Redundant Mode, model TFC-G21SFP, converts a 1000BASE-T (Copper 1Gbps) Ethernet connection to two 1G BASE-SX/LX (Fiber) SFP media connection, and vice versa. The 1000BASE-T RJ-45 port on the SFP transceiver supports a full-duplex 1Gbps connection at wire speed. The dual SFP ports allow for uplink redundancy if a link on one of the SFP ports fails. The SFP ports support both multimode (SX) or single-mode (LX) SFP modules.
More from the Manufacturer
TRENDnet’s compact 1000BASE-T to Dual SFP Fiber Media Converter with Redundant Mode, model TFC-G21SFP, converts a 1000BASE-T (Copper 1Gbps) Ethernet connection to two 1G BASE-SX/LX (Fiber) SFP media connection, and vice versa. The 1000BASE-T RJ-45 port on the SFP transceiver supports a full-duplex 1Gbps connection at wire speed. The dual SFP ports allow for uplink redundancy if a link on one of the SFP ports fails. The SFP ports support both multimode (SX) or single-mode (LX) SFP modules.
Dual SFP Ports
Dual SFP ports on the fiber-to-Ethernet converter allows for redundant fiber uplinks.
Gigabit Speed
Equipped with a Gigabit RJ-45 Ethernet port and dual gigabit SFP ports.
Compact
Compact and lightweight metal housing design provides greater installation flexibility.
Compact Design
Small, compact, and lightweight metal housing of the redundant SFP+ converter provides greater installation flexibility
LED Indicators
LED indicators on the copper-to-fiber converter convey port status
SFP Support
The dual SFP media converter is compatible with multi-mode and single mode transmissions
Gigabit Ethernet
1 x 1Gbps Ethernet port
Dual Gigabit SFP
2 x 1Gbps SFP ports
Fanless
Fanless design on the dual SFP media converter lowers energy consumption and eliminates operating noise
SPECIFICATIONS
Standards
IEEE 802.3
IEEE 802.3u
IEEE 802.3z
IEEE 802.3ab
IEEE 802.3az
Device Interface
1 x Gigabit RJ-45 port (10/100/1000Mbps)
2 x Gigabit SFP ports (100/1000Mbps)
LED indicators
Data Transfer Rate
Ethernet: 10Mbps (half duplex) 20Mbps (full duplex)
Fast Ethernet: 100Mbps (half duplex) 200Mbps (full duplex)
Gigabit: 2Gbps (full duplex)
100Mbps SFP: 200Mbps (full duplex)
Gigabit SFP: 2Gbps (full duplex)
Performance
Jumbo Frames: 9KB
Special Feature
Redundant mode for SFP connection
Power
Input: 100 – 240V AC, 50/60 Hz
Output: 5V DC, 1.5A
Max. Consumption: 3.3W
Fan/Acoustics
Fanless design
MTBF
780,000 hours @ 25° C
Operating Temperature
0° – 50° C (32° – 122° F)
Operating Humidity
Max. 90% non-condensing
Dimensions (L x W x H)
101 x 75 x 22.6mm (3.97 x 2.95 x 0.89 in.)
Weight
202g (0.45lbs)
Certifications
CE
FCC
LVD
Warranty
3-year
PACKAGE CONTENTS
TFC-G21SFP
Power adapter (5V DC, 1.5A)
All references to speed are for comparison purposes only. Product specifications, size, and shape are subject to change without notice, and actual product appearance may differ from that depicted herein.
Limited Warranty: 3 Year
| General Information | |
|---|---|
| Manufacturer | TRENDnet |
| Manufacturer Part Number | TFC-G21SFP |
| Brand Name | TRENDnet |
| Product Model | TFC-G21SFP |
| Product Name | TFC-G21SFP Transceiver/Media Converter |
| Product Type | Transceiver/Media Converter |
| I/O Expansions | |
| Total Number of Expansion Slots | 2 |
| Expansion Slot Type | SFP (mini-GBIC) |
| Number of SFP Slots | 2 |
| Interfaces/Ports | |
| Total Number of Ports | 1 |
| Network (RJ-45) | Yes |
| Number of Network (RJ-45) Ports | 1 |
| Media & Performance | |
| Media Type Supported | Twisted Pair, Optical Fiber |
| Fiber Mode Supported | Multi-mode, Single-mode |
| Maximum Data Transfer Rate | 2 Gbit/s |
| Network & Communication | |
| Ethernet Technology | Gigabit Ethernet |
| Network Technology | 1000Base-T, 1000Base-SX/LX |
| Physical Characteristics | |
| Form Factor | Standalone, Compact |
| Height | 0.9" |
| Width | 3" |
| Weight (Approximate) | 7.13 oz |
| Power Description | |
| Power Source | Power Adapter |
| Power Consumption | 3.30 W |
| Technical Information | |
| Features | Fanless |
| Warranty | |
| Limited Warranty | 3 Year |
| Miscellaneous | |
| Package Contents |
|
| TAA Compliant | Yes |
Matched on Copper / twisted pair
Send a bill of materials or part numbers — we confirm stock, TAA country of origin and a below-market total. No payment up front.
