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Ultra-compact media converter, SC duplex, RJ-45, USB-powered option

Black Box Corporation

Black Box Corporation LMC402A 10/100/1000 SFP transceiver SC 1310 nm 3.11 mile

SKU CH-N3QH-5JYVR MPN LMC402A

A pocket-sized media converter adds a 1310 nm multimode SC fiber link up to 3.11 miles to a 10/100/1000 RJ-45 port and draws power from USB

  • Ultra-compact design fits in a pocket or laptop case
  • USB-powered operation enables fiber links where AC or DC power is unavailable
  • Plug-and-play RJ-45 port auto-negotiates speed, duplex and crossover for 10/100/1000 Ethernet
  • SC duplex connector supports 1310 nm multimode fiber up to 3.11 mile
  • Weighs only 2.5 ounces for lightweight mobile deployments

Micro Mini Media Converter

The Black Box LMC402A is an ultra-compact media converter designed to bring fiber connectivity to the desktop or mobile workstations. Weighing only 2.5 ounces and roughly the length of a house key, it suits technicians and field engineers who need portable, lightweight network extension without relying on local AC power.

USB-Powered Versatility

The converter draws power from a USB port, enabling fiber links in locations where AC or DC outlets are unavailable. Its RJ-45 port autonegotiates speed, duplex, and crossover functions for 10, 100, and 1000 Mbps Ethernet, while the SC duplex connector handles multimode fiber, delivering plug-and-play deployment for laptops or remote equipment.

3.11 Mile Multimode Reach

The single specification that determines fit is the maximum supported distance of 3.11 mile over 1310 nm multimode fiber. Buyers needing longer single-mode links or different connector types must select another model.

Highlights

  • Ultra-compact design fits in a pocket or laptop case
  • USB-powered operation enables fiber links where AC or DC power is unavailable
  • Plug-and-play RJ-45 port auto-negotiates speed, duplex and crossover for 10/100/1000 Ethernet
  • SC duplex connector supports 1310 nm multimode fiber up to 3.11 mile
  • Weighs only 2.5 ounces for lightweight mobile deployments

Specifications

BrandBLACK BOX
Shipping weight0.18 kg
Package size197 × 102 × 38 mm

Questions about this item

Does the SC duplex connector on this LMC402A converter need periodic cleaning or replacement?

The SC duplex connector should be inspected and cleaned with a lint-free swab and isopropyl alcohol whenever you disconnect the patch cord; the converter itself has no moving parts or consumable components that require scheduled replacement.

What is the maximum link distance this 1310 nm multimode converter can sustain continuously?

The converter is rated for up to 3.11 mile over multimode fiber; beyond that distance the optical budget is exceeded and errors will appear first.

How much heat does the USB-powered unit produce when running all day?

The converter weighs only 2.5 ounces and draws minimal power from a USB port, so heat output is negligible and no active cooling is required.

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