Introduction

40 Gbps | Single Mode Fiber | LC | 10 km (6.2 mi) | Lifetime Warranty

The QSFP40LR4ST is an MSA compliant fiber QSFP+ transceiver that's designed, programmed and tested to work with 40GBASE-LR4 compatible MSA switches and routers. The QSFP+ transceiver module supports a maximum distance of up to 10 km (6.2 mi) and delivers dependable 40 GbE connectivity over fiber cabling.  

Technical Specifications: 

Wavelength: 1270nm to 1330nm 

Maximum Data Transfer Rate: 40 Gbps 

Type: Single Mode Fiber 

Connection Type: LC Connector 

Maximum Transfer Distance: 10 km (6.2 mi) 

MTBF: 1,489,426 hours 

Power Consumption: Less than 2.5 Watts 

DDM: Yes 

This QSFP+ fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions.  

StarTech.com SFPs 

All StarTech.com SFP & SFP+ transceiver modules are backed by a lifetime warranty and free lifetime multilingual technical support. StarTech.com offers a wide variety of SFP modules and direct-attach SFP Cables, providing the convenience and reliability you need to ensure dependable network performance. 

The StarTech.com Advantage

- 100% MSA UNCODED QSFP+ TRANSCEIVER: Designed, programmed and tested to work with compatible MSA Compliant switches and routers to deliver dependable 40GbE connectivity
- TECHNICAL SPECS: 40GBASE-LR4
- 40Gbps

Performance

SFP transceiver type

Fiber optic

Maximum data transfer rate

40000 Mbit/s

Interface type

QSFP+

Single-mode fiber (SMF) supported

Y

Multi-mode fiber (MMF) supported

N

Fiber optic connector

LC

SFP transceiver standard

LR4

Maximum transfer distance

10000 m

Tx wavelength (min)

1270 nm

Tx wavelength (max)

1330 nm

Networking standards

IEEE 802.3ba

Duplex system

Full

Digital Diagnostics Monitoring (DDM)

Y

Features

Product colour

Silver

Housing material

Aluminium

Hot-Plug support

Y

Mean time between failures (MTBF)

1489426 h

Certification

CE, FCC, UR, REACH

Power

Power consumption (typical)

2.5 W

Operational conditions

Operating temperature (T-T)

0 - 70 °C

Storage temperature (T-T)

-40 - 85 °C

Operating relative humidity (H-H)

5 - 95%

Weight & dimensions

Width

18.4 mm

Depth

72 mm

Height

13 mm

Weight

40 g

Packaging data

Number of products included

1 pc(s)

Package width

92 mm

Package depth

117 mm

Package height

32 mm

Package weight

76 g

Technical details

Sustainability certificates

RoHS

Logistics data

Master (outer) case width

250 mm

Master (outer) case length

300 mm

Master (outer) case height

200 mm

Products per master (outer) case

36 pc(s)