BLACK BOX 

BLACK BOX LHC040A-R4 AUTONEGOTIATES FOR SPEED AND DUPLEX. A DIP SWITCH ENABLES LINK FAULT PASS-THROUG

Mfg Part Number:  LHC040A-R4  
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Price: $200.53 + Free Shipping
Quantity:
In Stock/Mfg Direct Ship
Last Updated: Apr 25, 2026
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  • Autonegotiates for speed and duplex.
  • A DIP switch enables Link Fault Pass-Through to be turned on and off for better troubleshooting.
  • Powered by the included universal AC power supply, a PC's USB port (with optional USB Power Adapter Cable), or the optional rackmountable PowerTray.
  • Auto MDI/MDI-X means you never need to worry about what kind of cable to use.

Bring fiber to the desktop more conveniently and at a lower cost than installing fiber NICs. Black Box Multipower Miniature Media Converters make it easy to bring fiber to the desktop. Just connect a Miniature Media Converter to your PC's copper port with a CAT5x cable, then connect a fiber cable to the converter's other side. That's all there is to it! Best of all, you can tuck these tiny converters unobtrusively behind your PC. The converter not only links 10- and 100-Mbps segments to fiber cabling, it also works as a data rate converter, performing 10/100 autonegotiation on the twisted-pair port. For extra versatility, you can power the Miniature Media Converter one of three ways: through the external AC power supply included with each converter, through the optional USB Power Adapter Cable (LHC021A), or through the optional rackmount PowerTray (LHC018A-AC-R2).

Main Specification
General Information
Manufacturer Black Box Corporation
Manufacturer Part Number LHC040A-R4
Manufacturer Website Address http://www.blackbox.com
Brand Name Black Box
Product Line Multipower Miniature
Product Name Multipower Miniature Transceiver/Media Converter
Product Type Transceiver/Media Converter
Interfaces/Ports
Total Number of Ports 2
Network (RJ-45) Yes
Number of Network (RJ-45) Ports 1
Number of ST Ports 1
ST Port Type Duplex
Media & Performance
Media Type Supported Twisted Pair
Media Type Supported Optical Fiber
Fiber Mode Supported Multi-mode
Fiber Optic Cable Wavelength 850 nm
Maximum Distance Supported 0.50 km
Network & Communication
Ethernet Technology Fast Ethernet
Network Technology 100Base-X
Network Technology 10/100Base-T
Power Description
Power Source Power Supply
Physical Characteristics
Form Factor Rack-mountable
Form Factor Desktop
Height 1"
Width 2"
Depth 4.7"
Weight (Approximate) 1.20 lb
Miscellaneous
Package Contents
  • Multipower Miniature Transceiver/Media Converter
  • Universal AC Power Supply
Application/Usage Network
Certifications & Standards

EN62368

Environmentally Friendly Yes
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
TAA Compliant Yes
Warranty
Limited Warranty 6 Year
Additional Warranty Information

Double Diamond™ Warranty (Standard)

Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

The Double Diamond Warranty is our warranty that protects your Black Box® brand products from accidental damage, including drops, water, and power surges.

The FST ETH MED CONV 10/100Mbps COP to 100Mbps MM FBR 850nm 0.5km ST comes with a standard 6 Year Double Diamond™ Warranty (Standard) warranty already included.

During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!

WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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