We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Yellow duplex singlemode fibre patch cable with LC connectors on both ends, three metres long

Black Box Corporation

Black Box EFN310-003M-LCLC OS2 9/125 Singlemode Fibre Optic Cable LC/LC Yellow 3m

SKU CH-Z0SK-HXPN1

Singlemode 9/125 µm duplex fibre patch cable with LC/LC connectors, 3 m yellow OFNR PVC jacket

  • Product typeOthers
  • Product colorYellow
  • Singlemode 9/125 µm core for long-distance links
  • LC/LC duplex connectors enable quick patch-panel connections
  • Yellow jacket identifies OS2 singlemode cable at a glance
  • 3-metre length suits rack-to-rack or desk-side runs
  • New condition guarantees factory-tested performance out of the box

Singlemode 9/125 Duplex Cable

This singlemode duplex cable uses a 9/125 micron fibre core for long-distance data transmission. The LC/LC connectors suit patch panels and transceivers in enterprise or campus networks. It arrives new in a yellow OFNR-rated PVC jacket. The three-metre length fits rack-to-rack or floor-to-floor runs.

Yellow OFNR Jacket for Indoor Routing

The yellow jacket identifies singlemode fibre at a glance and meets OFNR riser ratings for vertical pathways. LC ferrules snap into standard SFP or SFP+ ports without adapters. Duplex construction carries transmit and receive strands in one assembly. No polishing or termination is required on site.

Low-Loss Performance Over Extended Runs

Singlemode geometry keeps insertion loss low across the full three-metre span. The ceramic ferrule end-faces resist contamination during repeated mating cycles. Yellow PVC resists abrasion in dense cable trays. Buyers needing multimode bandwidth or armoured outdoor plant should choose a different cable type.

How it compares

Measured against everything we stock in Fiber Optic Patch Cables, at today’s prices. Recalculated every night.

Price $27.99
Typical for this category: the median of 812 items is $29.99.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameBlack Box
Product typeOthers
Product colorYellow

Questions about this item

What distance limit applies to the 3-metre single-mode run?

At 3 metres the cable is well within standard single-mode reach limits for LAN and campus links.

How much heat or noise does the passive fibre assembly generate during continuous use?

The cable has no active components, so it produces no heat and makes no noise while carrying light signals.

Which LC duplex ports must my equipment already provide for this patch cord to work?

Both ends need LC duplex single-mode ports — typically SFP/SFP+ transceivers or fixed LC interfaces on switches and routers.

More in Fiber Optic Patch Cables

Similar items