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Technical Data Sheet

QSFP-40G-LR4 — Network Technical Data

✓ Verified by PartsTable
CISCO · NETWORK · 1GBE_NIC
WHAT YOU NEED TO KNOW
RJ45 = copper (needs CAT6) | SFP+ = fiber (needs transceiver) FLR = FlexibleLOM (HPE integrated) — NOT standard PCIe
Bracket height MUST match chassis — Full Height (2U) vs Low Profile (1U)
PRODUCT OVERVIEW

Cisco 40GBASE-LR4 QSFP Module for SMF with OTU-3. Key specifications include Reach: 10km, Connector: LC duplex, Data Rate: 40Gbps, Fiber Type: Single-mode, Wavelength: 1310nm, Form Factor: QSFP+. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-670-3716, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
NETWORK 1GBE_NIC QSFP-40G-LR4
NSN: 7025-01-670-3716
FSC: 7025
CAGE: AD565 — VODAFONE ITALIA SPA (ITA)
SPECIFICATIONS
Reach10km
ConnectorLC duplex
Data Rate40Gbps
Fiber TypeSingle-mode
Wavelength1310nm
Form FactorQSFP+
Max Power Consumption3.5W
NSN7025-01-670-3716
COMPONENT DIAGRAM
NIC CTRL PHY 0 PHY 1 ROM VRM SFP+ SFP+ LINK ACT PCIe x8 ~167 mm NETWORK ADAPTER | 2-PORT 10GbE | SFP+ | Full Height PCIe x8 | Link/Activity LEDs | PXE boot ROM TITLE NIC ADAPTER PN QSFP-40G-LR4 MFR CISCO Cisco 40GBASE-LR4 QSFP Module for SMF wi
KEY FEATURES
40GB Capacity
TYPICAL APPLICATIONS
  • Data center switch-to-switch interconnects
  • Server-to-storage fabric connectivity
  • Long-distance fiber optic links
  • High-speed uplink connections (10G/25G/40G/100G)
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH72.4 MILLIMETERS NOMINAL MM
OVERALL WIDTH18.4 MILLIMETERS NOMINAL MM
END ITEM IDENTIFICATIONWS-C3850-48XS
SPECIAL FEATURES1310 NM, SMF WITH OTU3 DATA-RATE SUPPORT CONNECTOR TYPE LC SUPPORTS LINK LENGTHS OF UP TO 10 KILOMETERS OVER A STANDARD PAIR OF G.652 SINGLE-MODE FIBER WITH DUPLEX LC CONNECTORS.
OVERALL HEIGHT13.5 MILLIMETERS NOMINAL MM
PART NAME ASSIGNED BY CONTROLLING AGENCYQSFP MODULE
OVERALL LENGTH72.4 MILLIMETERS NOMINAL MM
OVERALL WIDTH18.4 MILLIMETERS NOMINAL MM
END ITEM IDENTIFICATIONWS-C3850-48XS
SPECIAL FEATURES1310 NM, SMF WITH OTU3 DATA-RATE SUPPORT CONNECTOR TYPE LC SUPPORTS LINK LENGTHS OF UP TO 10 KILOMETERS OVER A STANDARD PAIR OF G.652 SINGLE-MODE FIBER WITH DUPLEX LC CONNECTORS.
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
QSFP-40G-LR4Interchangeable
Cisco 40GBASE-LR4 QSFP Module for SMF with OTU-3
interchangeable
LT-6800444 REV 1Interchangeable
interchangeable cross-reference
interchangeable
LT-C-0337-02Interchangeable
interchangeable cross-reference
interchangeable
QSFP-40G-LR4=Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMATSourcing: other
RELATED PARTS 6
C2901-AX/K9
Cisco 2901 wired router Gigabit Ethernet Black
C3850-NM-4-1G
Cisco Catalyst 3850 4 x 1GE Network Module
SFP-10G-SR
CISCO 10GBASE-SR SFP
SFP-10G-LR
CISCO 10GBASE-LR SFP Module
GLC-FE-100FX=
CISCO 100BASE-FX SFP for FE port
C9300-NM-8X
CISCO Catalyst 9300 8 x 10GE Network Module
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FREQUENTLY ASKED QUESTIONS
What is QSFP-40G-LR4?
QSFP-40G-LR4 is a Cisco 40GBASE-LR4 QSFP Module for SMF with OTU-3 manufactured by CISCO. It is classified as a NETWORK (1GBE_NIC).
What parts can replace QSFP-40G-LR4?
There are 4 known substitutes for QSFP-40G-LR4: QSFP-40G-LR4, LT-6800444 REV 1, LT-C-0337-02 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for QSFP-40G-LR4?
QSFP-40G-LR4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-670-3716. This indicates validated use in U.S. government and defense supply chains.
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