SFP-10/25G-LR-S – 10/25GBASE-LR SFP28 – 10 km G.652 SMF – 0 to 70°C Commercial Temperature

Cisco SN CheckSN verification before shipment.Verify authenticity3-Year WarrantyExtended, enterprise-gradeWarranty terms14-Day ReturnsStraightforward RMA processReturn policy
4.88 reviews4 Questions16 sold this month
List Price: $2,787.19 85% OFF
$431.00
Price Alert
Condition
Related
Quantity
Shipping Express Shipping 2-6 Business Days, via UPS, FedEx, DHL and more
Trusted & Secure Payments

Why Layer23-Switch

Stocked, Shipped and Supported by One Team

Founded
Customers
Units shipped
Countries

Inventory You Can See

Cisco stock on hand
Models ready to ship
Warehouse space

Ships in 1 Business Day

In-stock orders leave our Hong Kong or U.S. warehouse within 1 business day after payment, with tracking by email.

DHL FedEx UPS Duties included: US · CA · UK

LSCare Warranty

3years on enterprise equipment

  • Advance replacement for in-stock models
  • New unit for dead-on-arrival
  • 14-day returns on sealed items

Free CCIE Support

Certified engineers help before and after you buy. Reply within 1 business day by email or live chat.

Part number check Configuration Troubleshooting

Verify Before You Pay

100%factory-sealed

Get label and serial photos before shipment, and check every serial number with Cisco.

SFP-10/25G-LR-S Description

The SFP-10/25G-LR-S is a Cisco 10/25GBASE-LR SFP28 transceiver for single-mode fiber links between buildings and equipment rooms. The module reaches 10 km at both 10G and 25G over G.652 single-mode fiber at 1310 nm on a dual LC/PC connector, with a 0 to 70°C case rating and 1.3W maximum power draw. The 25G rate requires RS-FEC on the host port, and patch cords must have PC or UPC end faces because APC is not supported.

Quick Specs

Parameter

Specification

Optic type

10/25GBASE-LR SFP28

Data rate

10G or 25G

Reach

10 km at 10G and 25G

Fiber

G.652 single-mode fiber

Wavelength

1310 nm

Connector type

Dual LC/PC

Host FEC at 25G

RS-FEC required

Operating case temperature

0 to 70°C (commercial)

Maximum power consumption

1.3W

Application Scenarios

Campus Building-To-Building Links

Between two campus buildings, a Catalyst 9300 or Catalyst 9500 switch uses the module on an SFP28 port to carry 10G or 25G traffic over single-mode fiber runs of up to 10 km.

Leaf-To-Spine Across Data Halls

A data center with Nexus 9300 leaf switches in one hall can run 25G links to Nexus 9500 spine switches in another hall over single-mode fiber, with one module at each end.

Product Comparison

Parameter

SFP-10/25G-LR-S

SFP-10/25G-LR-I

SFP-10/25G-CSR-S

SFP-25G-ER-I

Cable type

G.652 single-mode

G.652 single-mode

Multimode (OM3/OM4)

G.652 single-mode

Cable distance

10 km

10 km; up to 15 km as an engineered link below 9.3 dB insertion loss with RS-FEC

300 m on OM3, 400 m on OM4

40 km; links beyond 30 km are engineered links

Wavelength

1310 nm

1310 nm

850 nm

1310 nm

FEC at 25G

RS-FEC required for 25G operation

RS-FEC for full reach; 3.5 km with BASE-R FEC, 1.5 km without FEC

RS-FEC for full reach; 70/100 m on OM3/OM4 with BASE-R FEC, 30/50 m without FEC

RS-FEC for full reach

Operating case temperature

0 to 70°C

-40 to 85°C

0 to 70°C

-40 to 85°C

Maximum power consumption

1.3W

1.3W

1.2W

1.5W

SFP-10/25G-LR-S and SFP-10/25G-LR-I share the same 1310 nm optics and 10 km of G.652 single-mode reach, but SFP-10/25G-LR-S is rated 0 to 70°C while SFP-10/25G-LR-I is rated -40 to 85°C. Sites outside 0 to 70°C, CPRI rates 7 to 10, or spans of up to 15 km as an engineered link below 9.3 dB insertion loss with RS-FEC need the industrial module, which Cisco’s TMG host list shows for no Catalyst 9000 family, while SFP-10/25G-LR-S is listed for eight. Multimode plant on OM3 or OM4 calls for SFP-10/25G-CSR-S, which keeps both rates to 300 m or 400 m. Single-mode spans beyond 15 km, up to 40 km, call for SFP-25G-ER-I, which is 25G only.

Ordering Checklist

  • Host support: Confirm the target switch or router lists SFP-10/25G-LR-S in the Cisco TMG matrix, with its minimum software release. TMG lists hosts per transceiver PID, so support for another 25G optic does not cover this one.
  • Fiber and connector: Use duplex G.652 single-mode fiber with LC patch cords that have PC or UPC end faces, not APC. The optic uses a dual LC/PC connector and does not support APC patch cords.
  • RS-FEC on 25G ports: Enable RS-FEC on both host ports of a 25G link. The datasheet requires RS-FEC on the host ports for 25G operation.
  • Temperature rating: Keep the module case within 0 to 70°C where it is installed. TMG lists this optic at 0 to 70°C case temperature, the commercial range.

Specifications

Parameter Specification Parameter Specification
Product ID SFP-10/25G-LR-S Cisco ordering description 10/25GBASE-LR SFP28 Module for SMF
Form factor SFP28 Data rate 10G and 25G
Cable type SMF Fiber standard G.652
Wavelength 1310 nm Cable distance 10 km at 10G and 25G
Connector type Dual LC/PC Patch cord connectors PC or UPC only; APC not supported
Host FEC requirement RS-FEC on host ports for 25G operation Max power consumption 1.3W
Pull tab / bail latch color Blue Transmit power (10G) +0.5 dBm maximum, -8.2 dBm minimum
Receive power (10G) +0.5 dBm maximum, -14.4 dBm minimum Wavelength range (10G) 1260 to 1355 nm
Transmit power (25G) +2.0 dBm maximum, -7.0 dBm minimum Receive power (25G) +2.0 dBm maximum, -13.3 dBm minimum
Wavelength range (25G) 1295 to 1325 nm Operating case temperature 0°C to 70°C (32°F to 158°F), commercial range
Storage temperature -40°C to 85°C (-40°F to 185°F) DOM DOM hardware capable
FCoE Supported with host software support Platform support Cisco switches; host list in the Cisco Transceiver Module Group (TMG) Compatibility Matrix
Standards SFF-8402, SFF-8472, IEEE 802.3-2015, IEEE P802.3by, IEEE P802.3cc Safety certifications Laser Class 1 21CFR-1040 LN#50 7/2001; Laser Class 1 IEC60825-1
Environmental compliance RoHS 6

Get More Information

Need pricing, stock, or shipping details for the SFP-10/25G-LR-S ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email [email protected] for a fast quotation.

Quality Certifications

Customer Reviews

Write A Review
4.8
(8 reviews)
5 Stars
6
4 Stars
2
3 Stars
0
2 Stars
0
1 Stars
0
    Madison Kelly
    Posted on 22/02/2026
    Verified Buyer
    5.0

    Was worried about buying from a third party, but the product is 100% genuine.

    Samantha Vasquez
    Posted on 20/02/2026
    Verified Buyer
    5.0

    Layer23 has been my go-to source for over a year now.

    Heather Martin
    Posted on 21/01/2026
    Verified Buyer
    4.0

    Glad I trusted my research. Layer23 was the right choice.

    Jill Valentine
    Posted on 05/10/2024
    Verified Buyer
    5.0

    Locked and loaded… into the SFP port. Link up immediately. Professional service.

    Albert Wesker
    Posted on 12/07/2024
    Verified Buyer
    5.0

    Superior performance. Complete global saturation… of network coverage achieved.

Questions & Answers

  • Does SFP-10/25G-LR-S support FCoE?

    Yes, when the host software supports it. Cisco's SFP28 data sheet names SFP-10/25G-LR-S in its FCoE support list. The capability depends on the host platform and release, so confirm FCoE support on the switch before you plan a storage link over single-mode fiber.
  • How does SFP-10/25G-LR-S connect to a QSFP-100G-PSM4-S port at 25G?

    Over a third-party single-mode breakout cable. Cisco's 25G at-a-glance table lists QSFP-100G-PSM4-S as the host and notes that both hosts require RS-FEC. The same table lists a QSFP-4x10G-S breakout for 10G operation, footnoted for compatibility, so check the footnote before you cable it.
  • Which 10G optic is the listed link partner of SFP-10/25G-LR-S at 10G?

    SFP-10G-LR-S is the peer listed for 10G operation of SFP-10/25G-LR-S in Cisco's 25G at-a-glance table. Run both ends at 10G for that pairing, because SFP-10G-LR-S is a 10G-only optic. The single-mode link between them is 10 km at most. Confirm both ends before you cable it.
  • What operating temperature and power draw does SFP-10/25G-LR-S have?

    SFP-10/25G-LR-S is a commercial-temperature optic rated for 0 to 70°C case temperature, and it draws up to 1.3W. It is not an industrial part, so keep it out of cabinets that fall below 0°C, and count the 1.3W in the port power plan.

Warranty

Visit How to Pay page for more information

FREE NETWORK TOOLS

Verify, plan, and comparewith confidence

Use practical tools to check device details, review lifecyclemilestones, and compare hardware before you buy.

Standard Services

Personalized Service, Superior Product Maintenance for Ultimate Satisfaction.

  • Projects and Technical Support
  • Easy Purchasing Supply
  • Product Lifecycle Protection
  • Exclusive F3 Team Support

Customized Support for Your Needs with CCIE, HCIE, HPE ASE, etc.

Shipping

DataSheet Downloads

  • SFP-10-25G-LR-S Datasheet