Close
Menu
Cisco SMARTnet Authorized Reseller
17
StarTech QSFP40GLR4S 40GBASE-LR4 QSFP Transceiver View larger

StarTech QSFP40GLR4S 40GBASE-LR4 QSFP Transceiver

QSFP40GLR4S

New

40GbE LR4 single-mode fiber module
×
   
 


Detailed Specifications

StarTech QSFP40GLR4S – 40GBASE-LR4 QSFP+ Transceiver Module

Overview :

The StarTech QSFP40GLR4S is a 40 GbE QSFP+ optical transceiver designed for long-reach single-mode fiber links in data center and enterprise networks. It provides 40 Gbps 40GBASE-LR4 connectivity over single-mode fiber to distances up to 10 km, making it suitable for spine-leaf, core aggregation, and long-haul campus connections.

This module uses an LC duplex interface and supports Digital Diagnostics Monitoring (DDM) for real-time link and optical parameter reporting. It is hot-swappable and MSA compliant, enabling deployment in QSFP+ ports on compatible switches and routers without disrupting network operations.

Intended for engineers and procurement teams, this transceiver is ideal when extending 40 GbE over single-mode fiber. It is not suitable for multimode fiber links or shorter-reach multimode applications (e.g., 40GBASE-SR4).

Key Features :

  • 40 Gbps 40GBASE-LR4 over single-mode fiber
  • Up to 10 km reach on SMF with LC duplex connector
  • QSFP+ hot-swappable MSA-compliant form factor
  • Integrated Digital Diagnostics Monitoring (DDM)
  • Low power (<2.5 W) for efficient port utilization

Specifications :

SpecificationDetails
Brand StarTech
Part Number QSFP40GLR4S
Product Type 40 GbE QSFP+ Transceiver
Network Standard IEEE 802.3ba 40GBASE-LR4
Maximum Data Rate 40 Gbps
Fiber Type Single-mode Fiber (SMF)
Wavelength Range 1270–1330 nm
Maximum Distance 10 km
Connector LC Duplex
DDM Yes
Form Factor QSFP+ (hot-swappable)
Power Consumption <2.5 W
Compliance RoHS, MSA
Warranty Lifetime

  • All packages are shipped same day if the order is placed before 3PM CST

    We use UPS/FedEx to ship the packages with different service levels offered by UPS/FedEx

    Overnight Shipping take 1 business day
    Expedited Shipping take about 2-3 business days
    Ground shipping take about 3-5 business days

    You can select the desired service level at Checkout and we will make sure the package is shipped as per the selected service level.

  • We Accept

    i) PayPal
    ii) All Credit & Debit Cards
    iii) Purchase Orders
    iv) Check
    v) Bank Transfer/ACH/Wire Transfer

    To process the order through Paypal/CC, you can simply checkout and process the payment.

    If you want to issue us Purchase Order/Check/Bank Transfer, Please contact us at the following details

    Call: 469.458.9636
    Email: sales@dcsupplies.net

  • If you have any queries, please contact us at the following details and we will be happy to help

    Call
    469.458.9636
    469.458.9638

    Email
    sales@dcsupplies.net

Close