I’m looking to outfit an entire server room and need about 200 of these 40G QSFP+ modules. Do you offer tier pricing or wholesale discounts for bulk corporate procurement?

Yes, we provide aggressive volume discounts for B2B clients! For a bulk purchase of 200 units, you will receive a significant price reduction compared to the single-unit cost shown. Reach out to our sales engineering team directly for a customized quote.

We use a mix of Cisco Nexus and Arista switches in our data center. Will this 40GBASE-LR4 module interoperate seamlessly without throwing third-party warning logs?

Absolutely. This QSFP+ module is thoroughly tested for OEM compatibility across major brands like Cisco, Arista, and Juniper. It's entirely plug-and-play and will integrate smoothly without triggering unsupported transceiver warnings.

We are on a tight schedule for a campus fiber network rollout next month. Are these 1310nm 10km modules in stock, and what’s your typical delivery cycle to Europe or the US?

We maintain a large, stable supply chain and keep extensive inventory of these standard 40G LR4 optics. Orders are typically processed within 24 hours, and expedited global shipping usually takes just 2 to 5 business days, ensuring you meet critical project deadlines.

Is this transceiver fully compliant with IEEE 802.3ba and standard MSA specifications? I need to ensure it meets strict industry compliance for our federal contracts.

Yes, the LQ-CW40-LR4C strictly complies with the IEEE 802.3ba 40GBASE-LR4 standard and all QSFP+ MSA specifications. It is also fully RoHS compliant, fulfilling the rigorous regulatory and operational demands of global enterprise and government deployments.

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Cisco QSFP-40GE-LR4 Compatible LINK-PP 40G QSFP+ 1310nm 10km Duplex LC DOM SMF Optical Transceiver Module

Name: Cisco QSFP-40GE-LR4 Compatible LINK-PP 40G QSFP+ 1310nm 10km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 219651
Price: 128.14 USD
Availability: InStock
Rating: 4.9 (35 reviews)

# 219651

Product: Cisco QSFP-40GE-LR4 Compatible LINK-PP 40G QSFP+ 1310nm 10km Duplex LC DOM SMF Optical Transceiver Module
SKU: 219651
P/N: LQ-CW40-LR4C
Price: $ 149
Stock: 1378 in Stock
Sold: 2.9K
Product URL: https://www.l-p.com/products/472218.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

: Cisco QSFP-40GE-LR4 Compatible LINK-PP 40G QSFP+ 1310nm 10km Duplex LC DOM SMF Optical Transceiver Module

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$ 141.55

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$ 137.08

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Manufacture: LINK-PP

P/N: LQ-CW40-LR4C

Compatible:: Cisco; LINK-PP; APRESIA; Alcatel-Lucent; Arista; Avago; BladeSystem; Brocade; Check Point; Cisco Meraki; D-Link; Dell; EdgeCore; Extreme; F5 Networks; FS; Fortinet; Generic; Gigamon; H3C; HPE Aruba; HPE H3C; HW; IBM; Ixia; Juniper; MRV; NVIDIA/Mellanox; Palo Alto

Compatible P/N:: WSP-Q40GLR4L | 2km; QSFP-40G-LR4 | 10km; QSFP-40GE-LR4 | 10km; QSFP-LR4-40G-I | 10km; QSFP-40G-LR4-20 | 20km; QSFP-40G-ER4 | 40km

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Cisco QSFP-40GE-LR4 Compatible LINK-PP 40G QSFP+ Specifications

The Cisco QSFP-40GE-LR4 Compatible LINK-PP module is a premium 40GBASE-LR4 QSFP+ optical transceiver designed for high-speed data center networks. This commercial-grade 40G Ethernet module operates over single-mode fiber (SMF), delivering exceptional bandwidth and long-range reliability. Featuring a hot-swappable QSFP+ form factor, it ensures seamless integration, minimal latency, and maximum performance for enterprise-level telecommunication upgrades.

Cisco Part Number	QSFP-40GE-LR4	Vendor Name	LINK-PP
Form Factor	QSFP+	Max Data Rate	40Gbps
Wavelength	1271nm, 1291nm, 1311nm, 1331nm	Max Cable Distance	10km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
Protocols	OTN OTU3, 40G Ethernet, Fiber Channel, SATA/SAS3, MSA Compliant	Operating Temperature Range	0°C to +70°C

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Q: I’m looking to outfit an entire server room and need about 200 of these 40G QSFP+ modules. Do you offer tier pricing or wholesale discounts for bulk corporate procurement? By J***t on 2026-04-09

A: Yes, we provide aggressive volume discounts for B2B clients! For a bulk purchase of 200 units, you will receive a significant price reduction compared to the single-unit cost shown. Reach out to our sales engineering team directly for a customized quote. By admin on 2026-04-09
Q: We use a mix of Cisco Nexus and Arista switches in our data center. Will this 40GBASE-LR4 module interoperate seamlessly without throwing third-party warning logs? By J***n on 2026-03-17

A: Absolutely. This QSFP+ module is thoroughly tested for OEM compatibility across major brands like Cisco, Arista, and Juniper. It's entirely plug-and-play and will integrate smoothly without triggering unsupported transceiver warnings. By admin on 2026-03-17
Q: We are on a tight schedule for a campus fiber network rollout next month. Are these 1310nm 10km modules in stock, and what’s your typical delivery cycle to Europe or the US? By M***l on 2026-02-10

A: We maintain a large, stable supply chain and keep extensive inventory of these standard 40G LR4 optics. Orders are typically processed within 24 hours, and expedited global shipping usually takes just 2 to 5 business days, ensuring you meet critical project deadlines. By admin on 2026-02-10
Q: Is this transceiver fully compliant with IEEE 802.3ba and standard MSA specifications? I need to ensure it meets strict industry compliance for our federal contracts. By T***l on 2025-10-25

A: Yes, the LQ-CW40-LR4C strictly complies with the IEEE 802.3ba 40GBASE-LR4 standard and all QSFP+ MSA specifications. It is also fully RoHS compliant, fulfilling the rigorous regulatory and operational demands of global enterprise and government deployments. By admin on 2025-10-25

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J***z

Finland

Verified Purchase

5 .0

2026-06-04

Exact 40G QSFP+ specs as advertised.

95 Helpful vote Comments

C***s

United Kingdom

Verified Purchase

5 .0

2026-06-03

Excellent fiber transceiver for enterprise routing.

169 Helpful vote Comments

C***n

Italy

Verified Purchase

5 .0

2026-04-30

Works perfectly with my Brocade switch!

117 Helpful vote Comments

J***s

Switzerland

Verified Purchase

5 .0

2026-02-01

Smooth 40Gbps throughput. Love the plug-and-play duplex LC interface for our NAS setup.

143 Helpful vote Comments

C***n

Denmark

Verified Purchase

5 .0

2025-10-25

Flawless 40GBASE-LR4 QSFP+ module.

203 Helpful vote Comments

C***g

Colombia

Verified Purchase

5 .0

2025-10-20

Top-tier 40G SMF optic. The 1271-1331nm CWDM4 tech is super efficient for cabling.

188 Helpful vote Comments

N***s

Argentina

Verified Purchase

5 .0

2025-09-02

Upgrading spine-to-leaf links was a breeze. These duplex LC transceivers run cool under 70°C limits. The DDM monitoring is incredibly precise across our Juniper switches. Highly recommend for B2B procurement.

159 Helpful vote Comments

A***r

Finland

Verified Purchase

5 .0

2025-08-22

DDM functionality works right out the box.

186 Helpful vote Comments

C***s

Dominican Republic

Verified Purchase

5 .0

2025-08-14

Passed all loopback tests. Excellent 10km transmission distance for our business network.

123 Helpful vote Comments

J***s

Malaysia

Verified Purchase

5 .0

2025-07-17

Excellent wholesale pricing. This 40G QSFP+ 10km module saved our IT budget massively.

148 Helpful vote Comments

B***n

United States

Verified Purchase

5 .0

2025-07-09

Good budget 40G optic for NAS.

130 Helpful vote Comments

R***s

Argentina

Verified Purchase

4 .0

2025-06-05

Box arrived squished, but this Cisco compatible 40G transceiver works perfectly in our rack.

200 Helpful vote Comments

D***l

Malaysia

Verified Purchase

5 .0

2025-05-21

Solid 10km transceiver for SMF.

129 Helpful vote Comments

E***g

Italy

Verified Purchase

4 .0

2025-04-07

Shipping delayed by two days. Still, a solid 10km SMF LC optic with accurate DOM.

27 Helpful vote Comments

D***l

Japan

Verified Purchase

5 .0

2025-03-13

Great cheap 40G optical module for UK datacenters. DDM stats are spot on.

127 Helpful vote Comments

K***e

Portugal

Verified Purchase

5 .0

2025-02-06

Reliable 40G QSFP+ module for single-mode fiber. Linked right up with our HPE switches!

143 Helpful vote Comments

M***l

Mexico

Verified Purchase

5 .0

2025-01-25

Tested these 40G QSFP+ modules for our campus fiber network upgrade. Flawless Arista compatibility and the CWDM4 wavelengths maintain stable 10km links. Great cost-effective solution for massive datacenter deployments!

57 Helpful vote Comments

M***s

Dominican Republic

Verified Purchase

5 .0

2025-01-09

Solid OEM compatible 1310nm QSFP+ for our base station backhaul. The DFB transmitters are rock stable. Easily handles intensive 40G Ethernet traffic without overheating in our indoor server cabinets.

47 Helpful vote Comments

B***i

Cambodia

Verified Purchase

5 .0

2025-01-06

Nice product and well packaged.

66 Helpful vote Comments

M***R

United States

Verified Purchase

5 .0

2024-12-31

Very Fast shopping process.Everything went well and I'll order again.

50 Helpful vote Comments

C***g

Kenya

Verified Purchase

5 .0

2024-10-26

We deployed 50+ of these 40GBASE-LR4 optics for our corporate WAN. Perfect interoperability with Dell Force10 and Extreme gear. Zero packet loss on single-mode fiber over 8km. Excellent TCO overall.

99 Helpful vote Comments

F***i

United States

Verified Purchase

5 .0

2024-10-16

LINK-PP has an easy to browse website with great prices and excellent customer service. Every interaction that I have had with LINK-PP has been smooth and hassle free. Would definitely reccomend to friends and family!

48 Helpful vote Comments

C***d

United States

Verified Purchase

5 .0

2024-10-11

Very happy with the speed of delivery, unlike others, and accuracy of order. Will buy from them again.

32 Helpful vote Comments

E***z

Hong Kong

Verified Purchase

5 .0

2024-09-30

I just placed an order with 50 pcs 10G Sfp Cage. You guys shipped them to me in the same day. Actually it's really urgent for me and I appreciate your Fast shipment. Will order it continually for my projects.

82 Helpful vote Comments

A***s

Israel

Verified Purchase

5 .0

2024-08-27

It arrived in good order and was what I expected and ordered.

43 Helpful vote Comments

C***n

United States

Verified Purchase

5 .0

2024-08-11

No issues. Everything arrived on time as advertised.

49 Helpful vote Comments

R***n

Hong Kong

Verified Purchase

5 .0

2024-08-09

Great price for product and shipping. Fast shipping. Will shop again!

91 Helpful vote Comments

H***n

United States

Verified Purchase

5 .0

2024-06-15

In these days of web ordering with faceless automation it was a fresh breeze to get a human behind my order. The order was Fast.

63 Helpful vote Comments

L***u

South Africa

Verified Purchase

5 .0

2024-06-01

These ethernet port are awesome. Support has been great with everyone at LINK-PP. They are Fast to respond and are very helpful with all of your questions. Thank you!

50 Helpful vote Comments

S***r

United Kingdom

Verified Purchase

5 .0

2023-12-17

It is always a pleasure to purchase from l-p.com. Their website is easy and friendly to use and the products have great descriptions and always accurately show. Customer service is the best I've experienced..

44 Helpful vote Comments

V***a

United Kingdom

Verified Purchase

5 .0

2023-09-15

This is my second purchase from Link-pp and I have been happy with their service, price and speedy delivery. I would buy from them again.

59 Helpful vote Comments

K***i

Ireland

Verified Purchase

5 .0

2023-08-02

I'm very happy with my transaction and purchase. The Optical Transceiver Module works with no issue. I would definitely recommend this company for customer service and speed. I will be purchasing from them again in the future.

99 Helpful vote Comments

E***i

United States

Verified Purchase

5 .0

2023-05-27

I interacted with their online chat and asked many question to ensure I can get the right one. They helped me pick the perfect module for me while weighing several options. I got the product I wanted and additional knowhow.

25 Helpful vote Comments

L***n

Iran, Islamic Republic of

Verified Purchase

5 .0

2023-02-22

Fast shipping, efficient service. Quality tranceivers received.

51 Helpful vote Comments

M***c

Japan

Verified Purchase

5 .0