The QSFP-40G-SR4-S-ST is a Cisco QSFP-40G-SR4-S compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco brand switches and routers. It delivers dependable 40 GbE connectivity over fiber cable, for 40GBASE-SR4 compliant networks, with a maximum distance of up to 100 m (328 ft).
- 100% CISCO QSFP-40G-SR4-S COMPATIBLE: Works with Cisco switches like Firepower, ASR9000, ASR1000, C9300, NCS5500 and others - TECHNICAL SPECS: 40GBASE-SR4 | 40 Gbps | Multi Mode (MMF) | MPO Connector | 850nm | Digital Diagnostic Monitoring (DDM) | Distances up to 100m (328ft) - TESTED FOR OEM HOST COMPATIBILITY: Hot-swappable in Cisco routers and switches; DDM support reports the transceiver's status to most SNMP network management tools - WORKS WITH MSA COMPLIANT SWITCHES: Also works with switch models from Ubiquiti, D-Link, Netgear, Supermicro, TP-Link and more that accept uncoded modules - THE IT PRO'S CHOICE: Designed and built for IT Professionals, this SFP module is backed for life (lifetime of module, not network switch), including free lifetime 24/5 multi-lingual technical assistance.
Warranty:
12 months * * Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.
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7 day right of exchange
If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.
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Date Created: 19:45, 05-06-2026 Product URL: https://www.pbtech.com/product/NETSTT4634021/StarTechcom-Cisco-QSFP-40G-SR4-S-Compatible-QSFP-M
Features
The QSFP-40G-SR4-S-ST is a Cisco QSFP-40G-SR4-S compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco brand switches and routers. It delivers dependable 40 GbE connectivity over fiber cable, for 40GBASE-SR4 compliant networks, with a maximum distance of up to 100 m (328 ft).
- 100% CISCO QSFP-40G-SR4-S COMPATIBLE: Works with Cisco switches like Firepower, ASR9000, ASR1000, C9300, NCS5500 and others - TECHNICAL SPECS: 40GBASE-SR4 | 40 Gbps | Multi Mode (MMF) | MPO Connector | 850nm | Digital Diagnostic Monitoring (DDM) | Distances up to 100m (328ft) - TESTED FOR OEM HOST COMPATIBILITY: Hot-swappable in Cisco routers and switches; DDM support reports the transceiver's status to most SNMP network management tools - WORKS WITH MSA COMPLIANT SWITCHES: Also works with switch models from Ubiquiti, D-Link, Netgear, Supermicro, TP-Link and more that accept uncoded modules - THE IT PRO'S CHOICE: Designed and built for IT Professionals, this SFP module is backed for life (lifetime of module, not network switch), including free lifetime 24/5 multi-lingual technical assistance.
Specifications
Hardware
Compatible Brand
Cisco
Industry Standards
IEEE 802.3ba 40GBASE-SR4
Packaging Information
Package Height
1.4 in [3.5 cm]
Package Length
8.1 in [20.5 cm]
Shipping (Package) Weight
2.1 oz [60 g]
Package Width
4.7 in [12 cm]
Performance
Maximum Data Transfer Rate
40.00 Gbps
DDM
Yes
Max Transfer Distance
100 m (328 ft)
MTBF
244,610,583 hours
Wavelength
850nm
Compatible Networks
40 Gbps
Type
Multi Mode
Fiber Operating Mode
Full-Duplex
Physical Characteristics
Product Height
0.3 in [8.5 mm]
Product Length
0.7 in [1.9 cm]
Weight of Product
1.3 oz [37.5 g]
Product Width
4.8 in [12.2 cm]
What's in the Box
Included in Package
1 - QSFP+ Transceiver
Date Created: 19:45, 05-06-2026 Product URL: https://www.pbtech.com/product/NETSTT4634021/StarTechcom-Cisco-QSFP-40G-SR4-S-Compatible-QSFP-M
Shipping costs vary based on your location and the items being shipped and in some cases shipping may even be FREE.
To calculate what the shipping costs will be for your order, add the items you are interested in to your cart, view the Shopping Cart page, and select your 'Delivery Area' to calculate the shipping cost.
Shipping Security & Insurance
All orders shipped by PB Tech are sent via a courier with a signature required for each delivery. In some cases, and only where you have given the courier company permission to leave orders at a designated location, your order may be delivered without requiring a signature. All orders sent by PB Tech are fully insured in the unlikely event that your item(s) are damaged or go missing in transit.
Delivery Estimates
The delivery time-frame (in days) for each product we sell is detailed on the individual product page just to the right of the main product image. From when you place your order, in-stock products typically arrive within 7-10 working days for all countries that we ship to.
Overseas Shipments
If you are located in New Zealand, you can order directly from our New Zealand site www.pbtech.co.nz. If you are located in Australia you can order directly from our Australian website www.pbtech.com/au
Returns & Warranty
7 day right of exchange
If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.
To exchange a product, goods must be sealed / unopened, with packaging in original condition, and accompanied by a valid receipt dated no more than 7 calendar days from when you request an exchange.
If there is not a suitable product that can be exchanged for your returned item you will be offered a credit on your account or gift card based on the value paid at the time of purchase.
Please note, items purchased on finance cannot be exchanged for a gift card.
Hassle free warranty service
If your product develops a fault within the manufacturer warranty period, you need to fill out our request a return form.
If your product develops a fault outside of the manufacturer warranty or PB Tech warranty period, we offer a full repair service and are an authorised repair agent for leading brands such as Samsung, HP, Toshiba, Lenovo and more.
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