QSFP-100G-SR4-S – 100G SR4 QSFP – MPO-12 MMF – 100m OM4

Cisco SN CheckSN verification before shipment.Verify authenticity3-Year WarrantyExtended, enterprise-gradeWarranty terms14-Day ReturnsStraightforward RMA processReturn policy
5.03 reviews6 Questions
List Price: $2,433.79 89% OFF
$268.00
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.

QSFP-100G-SR4-S Description

The QSFP-100G-SR4-S is a Cisco 100GBASE-SR4 QSFP transceiver for short 100G links inside a data hall over multimode fiber with MPO-12 connectors. The module reaches 70 m on OM3 and 100 m on OM4 or OM5 at 850 nm, draws up to 3.5W and operates from 0 to 70°C. The module uses 12-fiber parallel cabling and supports only PC or UPC patch cords.

Quick Specs

Parameter

Specification

Product ID

QSFP-100G-SR4-S

Product type

100GBASE SR4 QSFP optical transceiver

Cisco ordering description

100GBASE-SR4 QSFP Transceiver, MPO-12, 100m over OM4 MMF

Connector type

MPO-12, 12 fibers

Fiber type

Multimode fiber

Data rate

100 Gigabit Ethernet

Reach on OM3

70m

Reach on OM4

100m

Reach on OM5

100m

Nominal wavelength

850 nm

Optical transmit power per lane

-8.4 to +2.4 dBm

Power consumption

3.5W maximum

Commercial operating temperature

0 to 70°C

Application Scenarios

Row-To-Row Multimode Links

Within a data hall, the module joins 100G QSFP ports on a top-of-rack switch and an end-of-row switch over an OM4 MPO-12 trunk of up to 100 m.

Existing MPO-12 Multimode Trunks

In a building whose racks are already trunked with 12-fiber OM3, OM4 or OM5 cabling, the module reuses the installed MPO-12 fiber at the reach set by the fiber grade.

Product Comparison

Parameter

QSFP-100G-SR4-S

QSFP-100G-SL4

QSFP-100G-SR-S

QSFP-100G-SR1.2

Maximum cable distance

70m over OM3, 100m over OM4, 100m over OM5

20m over OM3, 30m over OM4, 30m over OM5

70m over OM3, 100m over OM4, 100m over OM5

70m over OM3, 100m over OM4, 150m over OM5

Connector type

MPO-12, 12 fibers

MPO-12, 12 fibers

Duplex LC

Duplex LC

Wavelength

850 nm

850 nm

850 nm

855 nm and 908 nm

Operating temperature

0 to 70°C

0 to 70°C

0 to 70°C

+10 to +60°C

Maximum power consumption

3.5W

2.5W

3.5W

3.9W

QSFP-100G-SR4-S is the MPO-12 parallel multimode optic of this group, reaching 70 m on OM3 and 100 m on OM4 or OM5 at 3.5W. QSFP-100G-SL4 uses the same MPO-12 connector and draws only 2.5W, but its reach drops to 20 m on OM3 and 30 m on OM4 or OM5, so it suits short in-row links. Plants cabled with duplex LC multimode pairs take QSFP-100G-SR-S, which matches the SR4 reach at 3.5W, or QSFP-100G-SR1.2, a BiDi optic at 855 and 908 nm that reaches 150 m on OM5 but runs only from +10 to +60 degrees C at 3.9W.

Ordering Checklist

  • Host support: Confirm the target switch or router, line card and QSFP28 port are on Cisco’s 100 Gigabit Ethernet Transceiver Modules Compatibility Matrix for this optic. A host can reject an optic that fits the cage but is not on its compatibility list.
  • Fiber and connector: Order MPO-12 patch cords on 12-fiber multimode cabling, PC or UPC polish. The optic has an MPO-12 port, not duplex LC, and the connector rule for this family excludes APC jumpers.
  • Fiber grade: Use OM3 up to 70 m, or OM4 or OM5 up to 100 m. The reach rating depends on the installed fiber grade.

Specifications

Parameter Specification Parameter Specification
Product ID QSFP-100G-SR4-S Product type 100GBASE SR4 QSFP optical transceiver
Cisco ordering description 100GBASE-SR4 QSFP Transceiver, MPO-12, 100m over OM4 MMF Host interface 100G Gigabit Ethernet Cisco QSFP port
Connector type MPO-12, 12 fibers Fiber type Multimode fiber
Core size 50 micron Modal bandwidth 2000 MHz*km on OM3; 4700 MHz*km on OM4 and OM5
Data rate 100 Gigabit Ethernet Reach on OM3 70m
Reach on OM4 100m Reach on OM5 100m
Nominal wavelength 850 nm Transmit wavelength range 840 to 860 nm
Receive wavelength range 840 to 860 nm Transmit power per lane -8.4 to +2.4 dBm
Receive power per lane -10.3 to +2.4 dBm Maximum power consumption 3.5W maximum
Pull tab color Beige QSFP connector module dimensions 13.5 x 18.4 x 72.4 mm maximum outer dimensions
QSFP connector module weight 100 grams or less Operating temperature 0 to 70°C
Storage temperature -40 to +85°C Standards references SFF-8665, SFF-8636, IEEE 802.3-2022, IEEE 802.3ba, IEEE 802.3bm
Laser class Class 1 Compliance reference RoHS 6

Quality Certifications

Customer Reviews

Write A Review
5.0
(3 reviews)
5 Stars
3
4 Stars
0
3 Stars
0
2 Stars
0
1 Stars
0
    Anthony Ward
    Posted on 25/04/2026
    Verified Buyer
    5.0

    Quality vendor with consistent execution. That’s what we look for.

    Laura Peterson
    Posted on 01/03/2026
    Verified Buyer
    5.0

    After-sale communication was professional and helpful.

    Ethan Turner
    Posted on 10/01/2026
    Verified Buyer
    5.0

    Sometimes a purchase just goes right from start to finish. This was one of those.

Questions & Answers

  • How far can QSFP-100G-SR4-S reach over multimode fiber?

    QSFP-100G-SR4-S reaches 70 m on OM3 fiber and 100 m on OM4 or OM5 fiber at 850 nm. The module uses a 12-fiber MPO-12 connection, so the cabling must be parallel multimode fiber with PC or UPC patch cords.
  • What operating temperature range does QSFP-100G-SR4-S support?

    QSFP-100G-SR4-S operates from 0 to 70°C, the commercial temperature range. Maximum power draw is 3.5W, so the cage temperature in the host switch must stay inside that range for the module to run within its specification.
  • What modal bandwidth does QSFP-100G-SR4-S assume for its multimode fiber?

    QSFP-100G-SR4-S assumes a modal bandwidth of 2000 MHz*km on OM3 and 4700 MHz*km on OM4 and OM5, over 50 micron core fiber. Fiber with a lower rated bandwidth cannot be expected to reach the published distances.
  • What wavelength window do the QSFP-100G-SR4-S transmitter and receiver use?

    QSFP-100G-SR4-S transmits and receives in the 840 to 860 nm window around its nominal 850 nm wavelength. Test equipment and any inline filters on the multimode trunk must pass that whole range.
  • What are the physical size and weight of QSFP-100G-SR4-S?

    QSFP-100G-SR4-S measures at most 13.5 x 18.4 x 72.4 mm and weighs 100 grams or less. It follows the SFF-8665 and SFF-8636 QSFP form, so it fits a standard QSFP cage without a clearance allowance.
  • What storage temperature does QSFP-100G-SR4-S allow?

    QSFP-100G-SR4-S can be stored from -40 to +85°C, a wider band than its 0 to 70°C operating range. Spare modules can stay in an unheated depot, but they must reach 0°C or above before they are powered in a switch.

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.

DataSheet Downloads

  • QSFP-100G-SR4-S Datasheet