The specs say 0°C to 70°C. Do you make an industrial wide-temperature version for our outdoor telecom cabinets?

This specific LQ-CW40-FR4C is our commercial-grade module designed for indoor data centers. For harsh outdoor environments like base station backhauls, we highly recommend our industrial-grade variants which support extreme temperatures from -40°C to 85°C. Please contact our support team to spec out the right wide-temp 2km option for your setup.

We are looking to bulk deploy these across our new UK datacenter. Do you guys offer any B2B pricing discounts for orders over 100 units?

Yes, we provide tiered wholesale discounts. For orders exceeding 100 units, the price drops significantly, and any order over $600 includes free global shipping. Feel free to contact our sales team directly for a custom quote!

Can you confirm if this optic strictly complies with IEEE 802.3ba 40GBASE-FR4 standards? We need it for a government compliance project.

Yes, it is 100% compliant with IEEE 802.3ba 40GBASE-FR4, RoHS, and MSA standards. Built with premium DFB lasers and PIN receivers, it easily meets the rigorous regulatory and performance requirements for both government and enterprise telecom networks.

What kind of fiber patch cords do I need for this? Should I use MPO or standard LC?

This 40Gbps module features a standard Duplex LC interface. You will need standard Single Mode Fiber (SMF) patch cables, not MPO. It is designed for simple, plug-and-play integration into existing duplex LC fiber panels up to a 2km transmission distance.

Hello, will this 40G QSFP+ transceiver play nice if we mix Cisco Nexus and Arista switches in the same rack?

Absolutely! The LQ-CW40-FR4C is fully MSA compliant and undergoes strict multi-brand switch testing. It interoperates seamlessly with Cisco, Arista, Juniper, and other major OEM equipment without triggering vendor lock-in errors.

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F5 Networks F5-UPG-QSFP+ Compatible LINK-PP 40G QSFP+ 1310nm 2km Duplex LC DOM SMF Optical Transceiver Module

Name: F5 Networks F5-UPG-QSFP+ Compatible LINK-PP 40G QSFP+ 1310nm 2km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 220092
Price: 213.28 USD
Availability: InStock
Rating: 5 (24 reviews)

# 220092

Product: F5 Networks F5-UPG-QSFP+ Compatible LINK-PP 40G QSFP+ 1310nm 2km Duplex LC DOM SMF Optical Transceiver Module
SKU: 220092
P/N: LQ-CW40-FR4C
Price: $ 248
Stock: 1275 in Stock
Sold: 6.1K
Product URL: https://www.l-p.com/products/493435.htm

For Order Over $1000 Get $15.00 Off , Code: Linkpp15

For Order Over $3000 Get $50.00 Off , Code: Linkpp50

For Order Over $5000 Get $100.00 Off , Code: Linkpp100

New Users: $10 Coupon for Orders , Code: linkpp2610

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Manufacture: LINK-PP

P/N: LQ-CW40-FR4C

Compatible:: Cisco; LINK-PP; Allied Telesis; Arista; Avago; Avaya; Brocade; Check Point; Chelsio; Ciena; D-Link; EdgeCore; F5 Networks; Fortinet; Generic; H3C; HPE Aruba; HPE H3C; HW; Intel; Juniper; MRV; Mikrotik; NVIDIA/Mellanox; Palo Alto

Compatible P/N:: F5-UPG-QSFP+ | 2km; F5-UPG-QSFP+LR4 | 10km; F5-UPG-QSFP+ER4 | 40km

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F5 Networks F5-UPG-QSFP+ Compatible LINK-PP 40G QSFP+ Specifications

The F5 Networks F5-UPG-QSFP+ Compatible LINK-PP module is a high-performance 40G QSFP+ transceiver designed for efficient optical communication. Built for single-mode fiber applications, this commercial-grade module perfectly complies with the IEEE 802.3ba 40GBASE-FR4 standard. It features a hot-pluggable form factor and operates reliably within a standard temperature range, ensuring stable enterprise networking connectivity.

F5 Networks Part Number	F5-UPG-QSFP+	Vendor Name	LINK-PP
Form Factor	QSFP+	Max Data Rate	40Gbps
Wavelength	1271nm, 1291nm, 1311nm, 1331nm	Max Cable Distance	2km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
Operating Temperature Range	0°C to +70°C	Protocols	40G Ethernet, Fibre Channel, SATA/SAS3, MSA Compliant
Host FEC	Supported	DOM/DDM	Supported

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Q: The specs say 0°C to 70°C. Do you make an industrial wide-temperature version for our outdoor telecom cabinets? By L***t on 2026-06-14

A: This specific LQ-CW40-FR4C is our commercial-grade module designed for indoor data centers. For harsh outdoor environments like base station backhauls, we highly recommend our industrial-grade variants which support extreme temperatures from -40°C to 85°C. Please contact our support team to spec out the right wide-temp 2km option for your setup. By admin on 2026-06-14
Q: We are looking to bulk deploy these across our new UK datacenter. Do you guys offer any B2B pricing discounts for orders over 100 units? By M***e on 2025-08-23

A: Yes, we provide tiered wholesale discounts. For orders exceeding 100 units, the price drops significantly, and any order over $600 includes free global shipping. Feel free to contact our sales team directly for a custom quote! By admin on 2025-08-23
Q: Can you confirm if this optic strictly complies with IEEE 802.3ba 40GBASE-FR4 standards? We need it for a government compliance project. By D***z on 2025-07-07

A: Yes, it is 100% compliant with IEEE 802.3ba 40GBASE-FR4, RoHS, and MSA standards. Built with premium DFB lasers and PIN receivers, it easily meets the rigorous regulatory and performance requirements for both government and enterprise telecom networks. By admin on 2025-07-07
Q: What kind of fiber patch cords do I need for this? Should I use MPO or standard LC? By R***n on 2025-04-12

A: This 40Gbps module features a standard Duplex LC interface. You will need standard Single Mode Fiber (SMF) patch cables, not MPO. It is designed for simple, plug-and-play integration into existing duplex LC fiber panels up to a 2km transmission distance. By admin on 2025-04-12
Q: Hello, will this 40G QSFP+ transceiver play nice if we mix Cisco Nexus and Arista switches in the same rack? By D***r on 2024-12-16

A: Absolutely! The LQ-CW40-FR4C is fully MSA compliant and undergoes strict multi-brand switch testing. It interoperates seamlessly with Cisco, Arista, Juniper, and other major OEM equipment without triggering vendor lock-in errors. By admin on 2024-12-16

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W***r

Colombia

Verified Purchase

5 .0

2026-05-04

Tested this 40GBASE-FR4 optic on a Juniper switch for base station backhaul. MUX/DEMUX handles the 1271-1331nm wavelengths brilliantly. Under 3.5W power draw keeps the rack cool.

42 Helpful vote Comments

N***n

Panama

Verified Purchase

5 .0

2026-03-30

Exactly what our machine room needed!

55 Helpful vote Comments

J***s

Japan

Verified Purchase

5 .0

2026-03-15

Works flawlessly with my Juniper gear!

192 Helpful vote Comments

C***z

New Zealand

Verified Purchase

5 .0

2026-02-20

Awesome 40Gbps optical module for campus networking.

222 Helpful vote Comments

M***n

Greece

Verified Purchase

5 .0

2026-01-16

Perfect 40G duplex LC optic in Canada.

194 Helpful vote Comments

S***s

Czech Republic

Verified Purchase

5 .0

2025-10-31

Best affordable 40G CWDM4 module for home 10G NAS upgrades. Plugged into my EdgeCore gear seamlessly. Latency is non-existent on single mode fiber. Will definitely buy more!

125 Helpful vote Comments

R***s

Poland

Verified Purchase

5 .0

2025-09-11

Excellent LINK-PP CWDM4 module. TX/RX levels remain stable even at 60°C operating temp.

89 Helpful vote Comments

J***n

Norway

Verified Purchase

4 .0

2025-06-23

Fast 2km SMF optical module, but tracking updated late. Still recommend for US buyers!

79 Helpful vote Comments

R***s

Colombia

Verified Purchase

5 .0

2025-05-24

Replaced old DACs with this 2km duplex LC optic. Much cleaner outdoor cabinet setup!

29 Helpful vote Comments

M***s

Czech Republic

Verified Purchase

5 .0

2025-05-19

Deployed these LQ-CW40-FR4C in our campus fiber network. Flawless Cisco and Arista compatibility. The DOM DDM feature is insanely accurate for monitoring 1311nm Tx/Rx power. Great value!

87 Helpful vote Comments

M***e

Brazil

Verified Purchase

5 .0

2025-04-22

Bought a batch of 40G QSFP+ transceivers for our datacenter interconnect. Stable 2km transmission over duplex LC SMF. Working perfectly at 45°C indoors. Zero drops so far.

228 Helpful vote Comments

S***r

Spain

Verified Purchase

5 .0

2025-04-17

Cheap 40G QSFP+ that actually works well.

46 Helpful vote Comments

K***l

Spain

Verified Purchase

5 .0