Name:

NS-SFP-25G-SR-S 25G Base-SR SFP28 850nm 100m LC MMF DOM Optical Transceiver Module

Model:
NS-SFP-25G-SR
Detail:
High‑density 25 Gbps SFP28 module with 850 nm VCSEL, supporting up to 100 m over OM4 MMF
Price:
$44.00 USD
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Features

25Gbps for Campus and Data Center

Engineered for low power consumption, our transceiver modules deliver a reliable and budget-friendly solution for 25Gbps Gigabit Ethernet connectivity in data centers.

Comprehensive Testing Ensures Reliability

Our transceiver modules undergo rigorous testing with advanced equipment, guaranteeing high-quality performance and reliable 25Gbps to 100Gbps optical connectivity.

View compatible list.

NS-SFP‑25G‑SR‑S Transceiver Module | 25Gbps, 850nm, Duplex LC, 70 m/100 m – Compatible with Major Brands

Product Overview

The NS-SFP‑25G‑SR‑S is a cutting-edge SFP28 transceiver module tailored for 25 Gigabit Ethernet and CPRI applications.

Operating at 850 nm, it delivers reliable data rates of up to 25.78 Gbps over multimode fiber and supports link lengths of 70 m on OM3 and 100 m on OM4 MMF via a duplex LC connector.

Hot‑swappable and fully compliant with the SFP28 MSA, it features Digital Optical Monitoring (DOM) for real-time performance diagnostics.

This module is universally compatible with major networking equipment brands such as Cisco, Juniper, Arista, HPE Aruba, Dell, Huawei, and more.

Compatible Brands

The NS-SFP-25G-SR-S is universally compatible across all brands. If you need to verify compatibility with your specific switch model, please click Contact Us Now for assistance.

Key Specifications

Specification Details
Vendor Name Network‑Switch
Form Factor SFP28
Max. Data Rate Up to 25.78 Gbps
Wavelength 850 nm
Max. Cable Distance 70 m (OM3) / 100 m (OM4 MMF)
Connector Duplex LC
Optical Components VCSEL transmitter / PIN photodiode receiver
Media Type Multi-Mode Fiber (MMF)
Digital Optical Monitoring (DOM) Supported
Power Consumption ≤ 1.2 W
Receiver Sensitivity Typically < –10.3 dBm
Transmit Power Approx. –6.0 to +2.4 dBm
Operating Temperature 0 °C to 70 °C (Commercial)
Protocol Compliance IEEE 802.3by, SFF‑8402, SFF‑8432, SFF‑8472

 

More Details

Quality Certifications

Do you have any question about the NS-SFP-25G-SR-S Optical Transceiver Module?

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or leave us an message on sales@network-switch.com

Warranty

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Item conditions are "New Sealed". They are fully tested by Certified CCIE / HCIE / RCNP Engineers.

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You can contact our customer service team to exchange or return any product that you bought from us.


Standard Warranty Policy

Original New Sealed Enterprise Hardware: 3 Years
Original New Sealed Consumer Devices: 1 Year

The Support Contacts

If your products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.

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Frequently Questions and Answers

Q1. What is an SFP‑25G‑SR‑S module?

A: The SFP‑25G‑SR‑S is an SFP28 transceiver module supporting 25 Gbps Ethernet over multimode fiber (MMF) at 850 nm wavelength, compliant with 25GBASE‑SR standards.

Q2. What is the maximum supported transmission distance?

A: Supports up to 70 m on OM3 and 100 m on OM4 multimode fiber at 25 Gbps. RS‑FEC (Reed‑Solomon Forward Error Correction) on host ports is required to achieve the full reach.

Q3. What connector and fiber type are used?

A: It uses LC duplex connectors over 50/125 µm multimode fiber (MMF) like OM3 or OM4.

Q4. Is SFP‑25G‑SR‑S compatible across brands?

A: Yes. It is MSA-compliant and works with major vendors such as Cisco, Arista, Juniper, Huawei, Dell, Extreme, etc., given their equipment supports 25 Gbps optics.

Q5. Does it support hot-swapping?

A: Yes, as an SFP28 module it is fully hot-pluggable, allowing insertion/removal without shutting down host equipment.

Q6. Does SFP‑25G‑SR‑S support Dual‑rate (10/25G) operation?

A: Yes, many compatible versions support dual-rate operation, allowing them to work at both 10 Gbps and 25 Gbps speeds (e.g., IEEE‑compliant fallback mode).

Q7. Does it support Digital Diagnostic Monitoring (DDM/DOM)?

A: Yes. SFP‑25G‑SR‑S modules typically support DOM/DDM via SFF‑8472, enabling monitoring of optical power, temperature, voltage, etc.

Q8. What is the power consumption of the module?

A: Typical maximum power consumption is around 1.2 W, depending on vendor and operation mode.

Q9. What temperature range is supported?

A: Standard commercial grade supports 0 °C to 70 °C. Industrial variants may offer extended ranges (e.g., –40 °C to 85 °C) depending on vendor specifications.

Q10. Which IEEE/Multi‑Source Agreements does SFP‑25G‑SR‑S conform to?

A: Conforms to IEEE 802.3by (25GBASE‑SR), and SFP28 MSA SFF‑8402, along with SFF‑8431/8432/8472 for form factor and diagnostic protocols.

Q11. How to verify compatibility with my equipment?

A: Check that your switch or NIC supports 25GBASE‑SR optics and accepts generic/third-party SFP28 modules without firmware restrictions. Compatibility lists often include this module’s part number or equivalent.

Q12. What applications is SFP‑25G‑SR‑S ideal for?

A: Ideal for data center top-of-rack/inter-rack uplinks, high-throughput SANs, server-to-switch and switch-to-switch links in high-density rack deployments.

Q13. Can SFP‑25G‑SR‑S auto-negotiate to 10G?

A: Yes, dual-rate versions can operate at 10.31 Gbps (10GBASE‑SR) where supported by host hardware. However, operating distance for 10G may extend slightly based on fiber quality and FEC requirement.

Q14. Is RS‑FEC required for full distance at 25G?

A: Yes—full 70–100 m reach on OM3/OM4 requires RS‑FEC enabled on host ports as per IEEE802.3by clause requirements.

Refund Policy

At Network-switch.com, we aim to provide the best customer experience and ensure that your purchases meet your expectations. If for any reason you are not satisfied with your purchase, please read our return and refund policy below to understand your options.

Returns

You have the right to return products purchased from Network-switch.com under the following conditions:

  • Eligibility for Return: Items can be returned within 30 days from the date of delivery, provided that the product is in its original condition, unused, and in the original packaging.
  • Non-returnable Items: Certain items such as personalized or custom-made products, and items marked as non-returnable at the time of purchase, cannot be returned.
  • Return Process: To initiate a return, please contact our customer support team at help@network-switch.com. You will be provided with instructions on how to return the product and obtain a return authorization number if necessary.

Refunds

  • Refund Process: Once we receive your returned item and inspect it, we will process your refund to the original method of payment within 7 business days.
  • Refund Conditions: Refunds will be issued for the purchase price of the item, excluding any shipping, handling, or other additional fees. If the product is returned damaged, used, or missing parts, a partial refund may be issued.

Exchanges

If you would prefer to exchange an item for a different size, color, or model, please follow the same return process. Once we receive the returned product, we will send the replacement at no additional charge, based on availability.

Shipping Costs

  • Return Shipping Fees: You are responsible for paying the return shipping costs unless the item is defective, damaged, or incorrect.
  • Refund for Shipping Costs: Shipping costs are non-refundable, except in the case of defective or incorrect items.
  • Restocking Fees: You would be chagred about 30% of the product price when return the item, unless the item is defective, damaged, or incorrect.

Damaged or Incorrect Items

If you receive a damaged or incorrect item, please contact our customer service team within 7 days of receiving the product. We will exchange once the return is received.

Contact Us

If you have any questions or concerns about returns or refunds, please contact us at:
Email: help@network-switch.com

Before returning any products, please contact us to explain the issues you are experiencing. In many cases, we can resolve the problem through technical support, and you won't need to return the product.

If there are irreparable defects in the device, you can return it to us for repair or replacement under our twelve-month warranty. Simply reach out to us, and we will provide you with a return code, our return address, and any additional instructions.

Please do not return any items without first contacting us. We will guide you through the process, including the appropriate shipping methods.

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