Does the SFP-10G-ER40-I support continuous high-throughput data transfers for massive NLP dataset synchronization?

Yes, the SFP-10G-ER40-I is engineered for sustained 10 Gbps line-rate performance without thermal throttling or performance degradation. Its robust heat dissipation and high-quality optical components ensure the continuous, zero-packet-loss data transmission required for synchronizing terabyte-scale NLP training corpora and maintaining real-time database replication across geographically distributed data centers.

Is this 1310nm transceiver compatible with standard single-mode OS2 fiber over a full 40km run without signal degradation?

Absolutely. The transceiver is fully compatible with standard 9/125um OS2 single-mode fiber. By utilizing a highly stable 1310nm DFB laser optimized for low chromatic dispersion, combined with a sensitive receiver, it effectively manages optical attenuation. This ensures pristine signal integrity and stable data delivery over the maximum 40-kilometer distance without the need for external signal amplification.

How can I access DOM data to monitor receiver optical power on enterprise-grade switches during heavy AI workloads?

DOM telemetry can be easily accessed through your enterprise switch command-line interface using standard diagnostic commands, such as show interfaces transceiver detail. Furthermore, this real-time data can be integrated via SNMP or REST APIs into centralized network management systems, allowing your infrastructure team to proactively monitor optical transmit/receive power and module temperature during resource-intensive AI and NLP workloads.

Will the module's latency profile negatively impact synchronous parallel processing in distributed data centers?

No, the optical transceiver will not bottleneck your parallel processing architecture. The SFP-10G-ER40-I operates strictly at the physical layer with sub-nanosecond processing latency, which is virtually invisible to the network stack. While you must account for the natural propagation delay of light through the physical fiber over long distances, the module itself is perfectly suited for highly synchronized distributed computing tasks.

Do I need to install an optical attenuator if my fiber link distance is significantly shorter than the rated 40km?

Yes, it is highly recommended to use an optical attenuator if your fiber link is exceptionally short, typically under 10 kilometers. Because the module is engineered with a high-power laser to achieve its 40km long-haul reach, an unattenuated signal on a short run can oversaturate the receiver photodiode. Inserting an appropriate attenuator prevents elevated bit error rates and protects the optical components from long-term damage.

We are rolling out a regional ISP upgrade and need about 300 of these industrial modules. Do you offer bulk discounts?

Absolutely! For large-scale deployments of our 10G SFP+ 40km transceivers, please contact our B2B sales team. We provide tiered volume pricing and dedicated procurement support for enterprise and ISP clients.

We plan to install these in unventilated traffic control cabinets. Can they actually handle extreme summer heat?

Yes, this is a true industrial-grade optical module. It is rated for a wide operating temperature range of -40°C to 85°C (-40°F to 185°F), ensuring stable 10G performance in harsh, unconditioned outdoor environments.

Can I use multimode fiber for a short run, or is this strictly for single-mode?

This specific 1310nm transceiver is designed exclusively for Single Mode Fiber (SMF) with a Duplex LC connector. For optimal signal integrity and to achieve the rated 40km distances, we strongly recommend using OS2 SMF cable.

Does this optic support OTN and CPRI protocols for our cell tower backhaul, or just standard Ethernet?

It is highly versatile. Besides being fully compliant with 10GBASE-ER/EW Ethernet standards, it supports standard CPRI, eCPRI, and OTU2/OTU2e data rates, making it perfect for both enterprise networking and telecom base station applications.

Will this 10G 40km SFP+ work with our mix of Cisco and Juniper datacenter switches?

Yes, these transceivers are programmed for strict OEM compatibility. They will plug and play seamlessly with Cisco, Juniper, Arista, Ubiquiti, and other major brands without any vendor lock-in issues.

Breadcrumb: Home; Products; Optics Transceivers | SFP Modules; 10/25/40G/100G Transceiver Modules; 10G SFP+; 216921

Click to open expanded view

Cisco SFP-10G-ER40-I Compatible LINK-PP 10G SFP+ 1310nm 40km Duplex LC DDM SMF Optical Transceiver Module (Industrial)

Name: Cisco SFP-10G-ER40-I Compatible LINK-PP 10G SFP+ 1310nm 40km Duplex LC DDM SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 216921
Price: 50.74 USD
Availability: InStock
Rating: 4.9 (22 reviews)

# 216921

Product: Cisco SFP-10G-ER40-I Compatible LINK-PP 10G SFP+ 1310nm 40km Duplex LC DDM SMF Optical Transceiver Module (Industrial)
SKU: 216921
P/N: LS-SM3110-40I
Price: $ 59
Stock: 815 in Stock
Sold: 1.3K
Product URL: https://www.l-p.com/products/476754.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

22 Reviews

5 Questions

Request Stock

1.3K Sold

$ 59

Free shipping over $600, If you need a more favorable price, please contact us directly.

Qty (pcs) :

Unit Price :

$ 59

100

$ 56.05

1000

$ 54.28

3000

$ 52.51

6000

$ 50.74

Manufacture: LINK-PP

P/N: LS-SM3110-40I

Compatible:: Cisco; LINK-PP; Arista; Brocade; Ciena; DELL; Extreme; FS; Fortinet; Generic; H3C; HW; IBM; Intel; Juniper; Mellanox; Netgear; Ubiquiti

Compatible P/N:: SFP-10G-LRM2 | 2km; SFP-10GLRL-31-I | 2km; SFP-10G-LR | 10km; SFP-10G-LR-I | 10km; SFP-10G-LR-X | 10km; SFP-10G-LR10-I | 10km; SFP-10G-LR-20 | 20km; SFP-10G-ER | 40km; SFP-10G-ER-I | 40km; SFP-10G-ER40 | 40km; SFP-10G-ER40-I | 40km; SFP-10G-ZR | 80km; SFP-10G-ZR-I | 80km; SFP-10G-ZR100 | 100km; SFP-10G-ZR100-I | 100km; SFP-10GZR120-55 | 120km

Shipping:

To Be Negotiated

Free Shipping

Can't deliver

to United States via {{now_chooseship?now_chooseship.name:''}}

Estimated delivery time : {{now_chooseship?now_chooseship.datemin:''}}-{{now_chooseship?now_chooseship.datemax:''}} days. See details

5-Year Warranty 30-Day Returns 30-Day Exchange

Stock:

{{parseInt(detail_data.left_num) ? detail_data.left_num +' in Stock' :detail_data.zeroStockOrder==0?'Out of Stock':'Available'}} .

Quantity:

( Min. Order {{detail_data.prodInfo.minimum_ordered_quantity}} )

undeliverable

Total Price:

{{ detail_data.displayed_price.unit_prefix }} {{ detail_data.displayed_price.original_total_price }} ( {{ detail_data.displayed_price.rate_of_discount }}% OFF ) {{detail_data.displayed_price.ex_sell_type}}

Add to wish

Specifications

Specification
Videos
Matching Products
Download
Q&A
Customer Reviews

Cisco SFP-10G-ER40-I Compatible LINK-PP 10G SFP+ Specifications

The Cisco SFP-10G-ER40-I Compatible LINK-PP module is an industrial-grade 10G SFP+ optical transceiver engineered for long-haul single-mode fiber connections. Operating at a 1310nm wavelength with a Duplex LC interface, it delivers reliable 10 Gbps data transmission over distances up to 40km while featuring built-in Digital Diagnostic Monitoring to ensure real-time network management.

Cisco Part Number	SFP-10G-ER40-I	Vendor Name	LINK-PP
Part Status	Active	Form Factor	SFP+
Max Data Rate	10.7Gbps	Wavelength	1310nm
Max Cable Distance	40km	Connector	Duplex LC
Transmitter Type	DFB	Receiver Type	PIN
Media	SMF	Receiver Sensitivity	-16dBm
TX Power	-6.5 to -0.5dBm	RX Power	-20 to -1dBm
Operating Temperature Range	-40 to +85°C	Protocols	SFP+ MSA , CPRI, eCPRI, IEEE802.3ae, SFF-8432, SFF-8431, 10GFC, FC-PI-4

Videos

Matching Products

Pictures

ID#

Description

Price

Stock

Add to Cart

Download

Product Drawing

PDF
LS-SM3110-40I.pdf

Questions & Answers
Ask a Question

No data

Q: We are rolling out a regional ISP upgrade and need about 300 of these industrial modules. Do you offer bulk discounts? By D***h on 2025-12-12

A: Absolutely! For large-scale deployments of our 10G SFP+ 40km transceivers, please contact our B2B sales team. We provide tiered volume pricing and dedicated procurement support for enterprise and ISP clients. By admin on 2025-12-12
Q: We plan to install these in unventilated traffic control cabinets. Can they actually handle extreme summer heat? By M***r on 2025-10-24

A: Yes, this is a true industrial-grade optical module. It is rated for a wide operating temperature range of -40°C to 85°C (-40°F to 185°F), ensuring stable 10G performance in harsh, unconditioned outdoor environments. By admin on 2025-10-24
Q: Can I use multimode fiber for a short run, or is this strictly for single-mode? By C***n on 2025-08-26

A: This specific 1310nm transceiver is designed exclusively for Single Mode Fiber (SMF) with a Duplex LC connector. For optimal signal integrity and to achieve the rated 40km distances, we strongly recommend using OS2 SMF cable. By admin on 2025-08-26
Q: Does this optic support OTN and CPRI protocols for our cell tower backhaul, or just standard Ethernet? By J***s on 2025-05-10

A: It is highly versatile. Besides being fully compliant with 10GBASE-ER/EW Ethernet standards, it supports standard CPRI, eCPRI, and OTU2/OTU2e data rates, making it perfect for both enterprise networking and telecom base station applications. By admin on 2025-05-10
Q: Will this 10G 40km SFP+ work with our mix of Cisco and Juniper datacenter switches? By P***l on 2024-11-28

A: Yes, these transceivers are programmed for strict OEM compatibility. They will plug and play seamlessly with Cisco, Juniper, Arista, Ubiquiti, and other major brands without any vendor lock-in issues. By admin on 2024-11-28

Customer Reviews
Write a Review

{{stardata.star}}

{{comment.count}} reviews
5 Stars

{{comment.star5}}%

4 Stars

{{comment.star4}}%

3 Stars

{{comment.star3}}%

2 Stars

{{comment.star2}}%

1 Star

{{comment.star1}}%

All Reviews ({{comment.star_num?comment.star_num:comment.count}})

All Reviews

5 stars only

4 stars only

3 stars only

2 stars only

1 star only
Reviews with Pictures ( {{comment.pic_comment}} )
See All Reviews

No data

T***h

Russian Federation

Verified Purchase

5 .0

2026-02-04

Awesome OEM compatibility, no coding issues here.

50 Helpful vote Comments

R***l

Germany

Verified Purchase

5 .0

2025-12-11

Great OEM compatibility! These industrial 10G modules worked perfectly in our Ubiquiti aggregate switches. ⚙️

166 Helpful vote Comments

E***z

Argentina

Verified Purchase

5 .0

2025-11-29

We use these industrial transceivers for long-haul base station links. Bulletproof reliability so far.

143 Helpful vote Comments

C***t

Peru

Verified Purchase

5 .0

2025-10-25

Tested this industrial optical transceiver in our unconditioned factory warehouse. The -40 to 85C tolerance is legit. DDM monitoring via our Mikrotik router shows perfectly stable tx/rx power levels all week.

152 Helpful vote Comments

M***r

Greece

Verified Purchase

4 .0

2025-09-30

Customs delayed our batch by a day. Otherwise, these 10G industrial transceivers are perfect.

164 Helpful vote Comments

S***h

Canada

Verified Purchase

5 .0

2025-09-09

Perfect for my home 10G NAS over single-mode fiber. Runs cool and stable.

167 Helpful vote Comments

M***z

Malaysia

Verified Purchase

5 .0

2025-07-28

Perfect industrial SFP+ for harsh weather environments.

97 Helpful vote Comments

L***n

Greece

Verified Purchase

5 .0

2025-02-15

Reliable duplex LC 10G link for our factory floor. DDM tracking is super helpful.

187 Helpful vote Comments

D***z

Switzerland

Verified Purchase

4 .0

2025-02-08

Box was a bit dented on arrival, but this 40km SMF module works flawlessly.

146 Helpful vote Comments

K***l

Thailand

Verified Purchase

5 .0

2025-01-27

Deployed these 10G SFP+ 1310nm 40km modules for a remote cell tower backhaul. The industrial temp rating handles freezing outdoor cabinets easily, and DDM readouts are spot on in our Cisco gear.

109 Helpful vote Comments

J***u

United States

Verified Purchase

5 .0

2024-03-31

easy and quick to buy

61 Helpful vote Comments

A***e

Belarus

Verified Purchase

5 .0

2024-02-28

What a great product this is! The features are great, excellent service!

89 Helpful vote Comments

K***n

Bangladesh

Verified Purchase

5 .0

2024-01-21

The solution team were professional and gave me some perfect advice about my project, and the product was exactly what I needed.

43 Helpful vote Comments

E***p

India

Verified Purchase

5 .0

2023-11-23

LINK-PP is the most user-friendly website I have ever found. It has very knowledgeable staff and offers various good products at a reasonable price. Also, the Fast delivery has helped me save a lot of time.

98 Helpful vote Comments

J***n

Indonesia

Verified Purchase

5 .0

2023-11-06

Will absolutely purchase from you soon. Pretty good.

49 Helpful vote Comments

G***y

Netherlands

Verified Purchase

4 .0

2023-07-18

The staff at l-p.com was extremely helpful and responsive. I greatly appreciated their expertise and guidance as I ordered the 1000BASE-T 10/25/40G Transceiver Modules. I could not have asked for a better experience. Thank you. I will shop again and I will recommend.

78 Helpful vote Comments

P***o

United Kingdom

Verified Purchase

5 .0

2023-05-04

Placed the order easily, Fast shipping. Thanks Yoeng, keep me posted the order status till to my desk, good job. So far all good – I have heard nothing from my lab which is a good sign!

58 Helpful vote Comments

H***n

Bulgaria

Verified Purchase

5 .0

2023-04-26

Simple and quick, smooth transaction! Thank you.

36 Helpful vote Comments

c***t

Hungary

Verified Purchase

5 .0

2023-03-30

Very pleased with your service. All my questions were answered immediately and the ordering process was quick. Great online store!

28 Helpful vote Comments

R***e

Malaysia

Verified Purchase

5 .0

2023-02-25

I think the title says it all! Thank you, will use this site again.

32 Helpful vote Comments

C***e

Thailand

Verified Purchase

5 .0

2023-02-16

answer my question very quick, thanks to that I bought this item

101 Helpful vote Comments

S***G

Hungary

Verified Purchase

5 .0

2023-01-05

I received my order quickly. They were exactly what I ordered and worked properly. I plan on ordering all my future transceiver supplies from l-p.com.

52 Helpful vote Comments