Just to be 100% sure before I finalize the PO, this requires standard single-mode fiber with a Duplex LC connector, right?

Spot on. This transceiver relies on Single-Mode Fiber (SMF) using standard Duplex LC physical interfaces. It utilizes 4-lane LAN-WDM MUX/DEMUX technology to push 40Gbps across that single pair of fiber.

We’re deploying a 70km metro link. Does this transceiver require inline optical amplifiers, or can we save on that cost?

You can definitely skip the extra hardware! Thanks to the high-sensitivity APD receiver and robust EML transmitter, it effortlessly supports up to 80km over single-mode fiber without any inline amplification, massively reducing your total cost of ownership.

Does this 40GBASE-ZR4 module play nice with a mixed network of Cisco Nexus core switches and Arista edge devices?

Absolutely! The LQ-LW40-ZR4C is highly compatible. We rigorously test it to ensure seamless interoperability across major brands like Cisco, Arista, Juniper, and Dell, eliminating vendor lock-in for your data center.

Our corporate procurement requires strict adherence to networking standards. Does this module support full DOM via I2C?

Yes! It is fully compliant with QSFP+ MSA and IEEE 802.3ba standards. It features a built-in I2C interface for real-time Digital Optical Monitoring (DOM/DDM), allowing your IT admins to track voltage, temperature, and channel power accurately.

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Cisco QSFPP-40G-ZR4 Compatible LINK-PP 40G QSFP+ 1310nm 80km Duplex LC DOM SMF Optical Transceiver Module

Name: Cisco QSFPP-40G-ZR4 Compatible LINK-PP 40G QSFP+ 1310nm 80km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 216496
Price: 1663.2 USD
Availability: InStock
Rating: 5 (28 reviews)

# 216496

Product: Cisco QSFPP-40G-ZR4 Compatible LINK-PP 40G QSFP+ 1310nm 80km Duplex LC DOM SMF Optical Transceiver Module
SKU: 216496
P/N: LQ-LW40-ZR4C
Price: $ 1,890
Stock: 135 in Stock
Sold: 782
Product URL: https://www.l-p.com/products/494800.htm

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

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Manufacture: LINK-PP

P/N: LQ-LW40-ZR4C

Compatible:: Cisco; LINK-PP; Arista; Brocade; Dell; Extreme; FS; Generic; H3C; HW; Intel; Juniper; NVIDIA/Mellanox; Palo Alto

Compatible P/N:: QSFPP-40G-ZR4-Lite | 60km; QSFP-ZR4-40G | 80km; QSFPP-40G-ZR4 | 80km

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Cisco QSFPP-40G-ZR4 Compatible LINK-PP 40G QSFP+ Specifications

The Cisco QSFPP-40G-ZR4 Compatible LINK-PP module is a hot-pluggable 40Gb/s QSFP+ optical transceiver designed for long-haul single-mode fiber networks. It operates on a +3.3V power supply within a commercial temperature range of 0°C to 70°C. Featuring an integrated 4-channel LAN-WDM TOSA/ROSA architecture and an APD receiver, it delivers an aggregate bandwidth exceeding 40Gbps.

Cisco Part Number	QSFPP-40G-ZR4	Vendor Name	LINK-PP
Form Factor	QSFP+	Max Data Rate	40Gbps
Wavelength	1295.56nm, 1300.05nm, 1304.58nm, 1309.14nm	Max Cable Distance	80km
Connector	Duplex LC	Media	SMF
Transmitter Type	EML	Receiver Type	APD
Operating Temperature range	0°C to +70°C	Protocols	QSFP+ MSA, IEEE 802.3ba Compliant

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Q: Just to be 100% sure before I finalize the PO, this requires standard single-mode fiber with a Duplex LC connector, right? By M***k on 2026-02-19

A: Spot on. This transceiver relies on Single-Mode Fiber (SMF) using standard Duplex LC physical interfaces. It utilizes 4-lane LAN-WDM MUX/DEMUX technology to push 40Gbps across that single pair of fiber. By admin on 2026-02-19
Q: We’re deploying a 70km metro link. Does this transceiver require inline optical amplifiers, or can we save on that cost? By D***s on 2025-11-30

A: You can definitely skip the extra hardware! Thanks to the high-sensitivity APD receiver and robust EML transmitter, it effortlessly supports up to 80km over single-mode fiber without any inline amplification, massively reducing your total cost of ownership. By admin on 2025-11-30
Q: Does this 40GBASE-ZR4 module play nice with a mixed network of Cisco Nexus core switches and Arista edge devices? By C***l on 2025-10-25

A: Absolutely! The LQ-LW40-ZR4C is highly compatible. We rigorously test it to ensure seamless interoperability across major brands like Cisco, Arista, Juniper, and Dell, eliminating vendor lock-in for your data center. By admin on 2025-10-25
Q: Our corporate procurement requires strict adherence to networking standards. Does this module support full DOM via I2C? By D***n on 2025-06-05

A: Yes! It is fully compliant with QSFP+ MSA and IEEE 802.3ba standards. It features a built-in I2C interface for real-time Digital Optical Monitoring (DOM/DDM), allowing your IT admins to track voltage, temperature, and channel power accurately. By admin on 2025-06-05

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S***e

Italy

Verified Purchase

5 .0

2026-05-05

Excellent Cisco compatible QSFP+ optical module.

204 Helpful vote Comments

R***s

Poland

Verified Purchase

5 .0

2025-12-01

Accurate 1295-1309nm wavelength output. Handles our corporate procurement networking requirements with absolute ease. ✅

66 Helpful vote Comments

R***p

Malaysia

Verified Purchase

5 .0

2025-10-31

Found everything we needed for our data center project in one place, finished the order in minutes and at always reasonable prices. Awesome.

32 Helpful vote Comments

B***r

Germany

Verified Purchase

5 .0

2025-10-16

Reliable commercial temp 0-70C optical transceiver.

78 Helpful vote Comments

S***h

Italy

Verified Purchase

5 .0

2025-09-21

Perfect 40GBASE-ZR4 optics for our campus routing. Interoperability with our H3C is seamless.

198 Helpful vote Comments

B***g

Costa Rica

Verified Purchase

5 .0

2025-08-08

Purchased 50 units for a massive data center deployment. Zero DOA, totally recommend!

140 Helpful vote Comments

I***i

Bangladesh

Verified Purchase

5 .0

2025-08-07

Really good website, search works really well.

19 Helpful vote Comments

D***s

Argentina

Verified Purchase

5 .0

2025-08-01

Excellent products, and good prices! No problems! Great website.

101 Helpful vote Comments

J***p

United States

Verified Purchase

5 .0

2025-07-23

Second purchase, the previous purchased Optical Transceiver Module connection is still working great almost one year later.

44 Helpful vote Comments

K***z

Hong Kong

Verified Purchase

5 .0

2025-07-18

Works great with my Palo Alto firewall.

163 Helpful vote Comments

J***n

Pakistan

Verified Purchase

5 .0

2025-06-02

Deployed a bulk batch of these 40G QSFP+ transceivers for campus fiber networking. The duplex LC SMF connection is rock solid. Great OEM compatibility with mixed Dell and Extreme switches. (^_−)−☆

91 Helpful vote Comments

P***z

Portugal

Verified Purchase

5 .0

2025-05-29

Works flawlessly for our 80km single-mode fiber links. Excellent total cost of ownership!

75 Helpful vote Comments

A***e

Costa Rica

Verified Purchase

5 .0

2025-05-24

The 1310nm LAN-WDM specs are spot on. Authentic SMF duplex LC QSFP+.

147 Helpful vote Comments

D***s

Peru

Verified Purchase

5 .0

2025-05-24

Top tier LAN-WDM MUX/DEMUX multiplexing technology.

51 Helpful vote Comments

S***r

Philippines

Verified Purchase

4 .0

2025-03-29

Took an extra day for delivery. Cisco compatible QSFP+ module works flawlessly though.

134 Helpful vote Comments

S***n

Costa Rica

Verified Purchase

5 .0

2025-03-14

Perfect for our enterprise 40G optical backbone.

77 Helpful vote Comments

B***z

Portugal

Verified Purchase

5 .0

2025-01-26

Upgraded our enterprise data center to 40G NAS storage using these SMF modules. The built-in I2C digital optical monitoring helps my team troubleshoot instantly. Flawless 40Gbps QSFP+ plug-and-play performance!

208 Helpful vote Comments

V***k

United States

Verified Purchase

5 .0

2024-12-16

I've always had good luck purchasing with LINK-PP. Excellent pricing and quick shipping.

87 Helpful vote Comments

W***z

Czech Republic

Verified Purchase

5 .0

2024-11-08

Our IT team loves this long-haul 40G QSFP+ 80km transceiver. Easy network scaling! (ﾉ◕ヮ◕)ﾉ

139 Helpful vote Comments

D***z

Venezuela

Verified Purchase

5 .0

2024-10-27

Great duplex LC QSFP+ for the price!

167 Helpful vote Comments

L***r

Macao

Verified Purchase

5 .0

2024-09-25

Delivered as promised - very satisfied!

13 Helpful vote Comments

B***l

Italy

Verified Purchase

5 .0

2024-03-22

Very helpful and cooperative

58 Helpful vote Comments

L***r

France

Verified Purchase

5 .0

2023-06-05

Easy to use web site.

41 Helpful vote Comments

M***i

Morocco

Verified Purchase

5 .0

2023-03-27

My order was pending confirmation that product would work with my device. Answered within a few hours. Order placed.

66 Helpful vote Comments

J***n

Hong Kong

Verified Purchase

5 .0

2023-03-25

high quality Sfp cage for a low price!

26 Helpful vote Comments

G***g

Malaysia

Verified Purchase

5 .0

2022-11-05

LINK-PP has everything that I need in stock, with the best prices and the Fastest shipping. Shopping here is always a fantastic experience for me. I love LINK-PP and will continue to use it as my provider for all of my fiber optics needs!

68 Helpful vote Comments

S***L

United States

Verified Purchase

5 .0

2022-10-29

These Optical Transceiver Modules helped me a great deal.

68 Helpful vote Comments

P***n

Singapore

Verified Purchase

5 .0