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Small rectangular SFP transceiver module with silver metal casing and black LC duplex port visible

STARTECH

STARTECH GLCLHSMDSTTA SFP transceiver 1000BASE-LX/LH 1310nm 10km

SKU CH-MJJ2-6ZMH4

Delivers 1.25 Gbps Gigabit Ethernet over single-mode or multi-mode fibre up to 10 km with an LC duplex interface and operates from 0 °C to 70 °C

  • Port count1 - Fiber Optic LC Duplex Female
  • Product typeTransceiver
  • Supported standardsIEEE 802.3z 1000BASE-LX/LH
  • Optical wavelength1310 nm
  • Fiber modeSingle Mode / Multi Mode
  • Maximum range10 km (6.2 mi)
  • Reliable Gigabit links up to 10 km over single-mode fiber
  • Operates from 0 °C to 70 °C for standard indoor deployments
  • Hot-pluggable SFP form factor enables quick module changes without downtime
  • TAA compliant for government and regulated procurement needs
  • Cisco GLC-LH-SMD equivalent ensures drop-in compatibility with existing gear

What this SFP module does

The STARTECH GLCLHSMDSTTA is a hot-pluggable SFP transceiver built for 1000BASE-LX/LH Gigabit Ethernet links. It operates at 1310 nm over single-mode or multi-mode fibre with an LC duplex connector. The module is fully compatible with Cisco GLC-LH-SMD equipment and meets IEEE 802.3z requirements. It suits network engineers extending campus or metro segments up to 10 km.

Installing and common pitfalls

The transceiver slides into any standard SFP port and is hot-pluggable, so the switch stays online during insertion. Always match the LC duplex patch cord to the fibre type in use; single-mode cable is required for the full 10 km reach, while multi-mode limits the link to 550 m. Clean the connector end-faces before mating to avoid excessive insertion loss. Verify that the host device supports 1000BASE-LX/LH and the correct wavelength.

Distance headroom and limits

On single-mode fibre the module delivers a 1.25 Gbps signal up to 10 km (6.2 mi). On multi-mode fibre the same wavelength reaches only 550 m (1804 ft), so longer campus runs need single-mode cable. Operating temperature spans 0 °C to 70 °C (32 °F to 158 °F), and storage extends from -40 °C to 85 °C (-40 °F to 185 °F) with 5–95 % humidity tolerance. Beyond the stated distances the optical budget is exhausted and errors rise sharply.

How it compares

Measured against everything we stock in SFP & SFP+ Transceiver Modules, at today’s prices. Recalculated every night.

Price $76.99
Cheaper than about 63% of the 1,471 comparable items (median $138.99).

Specifications

Product
Brand nameStarTech.com
Model nameGLCLHSMDSTTA
Product typeTransceiver
Performance
Transfer speed1.25 Gbit/s
Connectivity
Supported standardsIEEE 802.3z 1000BASE-LX/LH
Optical wavelength1310 nm
Fiber modeSingle Mode / Multi Mode
Maximum range10 km (6.2 mi)
Ports & slots
Port count1 - Fiber Optic LC Duplex Female
Size & build
Shipping weight0.05 kg
Package size120 × 74 × 32 mm
In the box
In the box1 - SFP transceiver
Environment & compliance
Temperature rangeOperating Temperature: 0 degree C to 70 degree C (32 degree F to 158 degree F)
Storage Temperature: -40 degree C to 85 degree C (-40 degree F to 185 degree F)
Humidity range5 to 95% RH

Questions about this item

How do I verify the transceiver is operating correctly after installation?

Check that the link LED on the switch port lights solid green and that the interface reports a 1.25 Gbps connection over the LC duplex single-mode fiber at 1310 nm.

What comes in the box and do I need to buy cables separately?

The package includes one SFP transceiver module only; you must supply LC duplex single-mode fiber patch cables to reach the 10 km distance.

Should I choose this model for a 550 m multi-mode run or a 10 km single-mode run?

This module supports both: up to 10 km over single-mode fiber and up to 550 m over multi-mode fiber at 1310 nm.

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