QSFP-40G-SR4-S: Cisco 40GBASE-SR4 QSFP+ Transceiver Module (MMF, 850nm, 150m, MTP/MPO)
MPN: QSFP-40G-SR4-S|By: Cisco
Starting from
$1,890
Indicative. Final pricing is confirmed with your quote.
In Stockships worldwide
- Condition:
- New (authorized channel)
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
Authorized & warrantied
Sourced through authorized distribution, with the full manufacturer warranty.
Compatibility checked
Validated against your server platform before dispatch.
Delivery & lead time
Confirmed with your quote, including expedited freight where available.
Business & public sector
POs, net terms and volume pricing for qualified organizations, government and edu.
Product overview
Part number QSFP-40G-SR4-S identifies this Cisco 40GBASE-SR4 QSFP+ Transceiver Module (MMF, 850nm, 150m, MTP/MPO). Optics have to match at both ends and are frequently vendor-coded, so a module that is electrically correct can still refuse to link. This is 40GBASE-SR4. Tell us both switch models and we will confirm compatibility before it ships.
Quote requests are answered within 48 business hours, with availability confirmed before you raise a purchase order rather than after.
Specifications
General
- Manufacturer part number
- QSFP-40G-SR4-S
- Product Type
- Transceivers & Cables
- Manufacturer
- Cisco
Technical specifications
- Transceiver Type
- SR4
Interfaces & connectivity
- Connector
- MTP
- Optical Standard
- 40GBASE-SR4
The table below is what the transceiver is documented as, not what we have inferred from the part number. If the figure you need is missing, ask and we will source it from the manufacturer.
Where the Cisco QSFP-40G-SR4-S is deployed
- Swapping out a failed transceiver for QSFP-40G-SR4-S under change control
- Holding spare optics against a link-level SLA
- Replacing an optic that has started erroring
Who this part is for
- Integrators supplying the passive layer with a switch order
- Network teams matching optics at both ends of an existing link
- Procurement buying optics in quantity for a scheduled build
What you get ordering this from us
Ordered by part number
The order is placed against QSFP-40G-SR4-S, not against a description of it, so there is no room for a substitution you did not agree to.
Compatibility checked
We confirm the part is supported on your platform before it ships, rather than leaving the check to you.
Answered by a human
A quote comes back with the reasoning attached, including the cases where we think you should buy something else.
Questions buyers ask about this part
Is QSFP-40G-SR4-S genuine and is the warranty intact?
Yes. It ships new in Cisco packaging, which is what keeps the warranty and the firmware entitlement valid. Anything we cannot supply that way we tell you about before you order.
Will QSFP-40G-SR4-S work in my server?
Tell us the switch at both ends of the link. Optics are frequently vendor-coded, so a module that is electrically correct can still refuse to come up; we confirm the coding for both ends before it ships.
Do you accept purchase orders and quote at volume?
Yes. We quote against a purchase order and hold the price for the quote period, with tiered rates at quantity. Net terms are available once the account is approved.
Compare other Transceivers & Cables we stock
| Model | Brand | Key spec | Availability | From |
|---|---|---|---|---|
| 10G SFP+ SR 850nm 300m Optical Transceiver Module | NVIDIA Networking | Speed: 10Gb/s | In Stock | $40 |
| Arista 1G SFP SX 850nm Optical Transceiver Module | Arista | Speed: 1Gb/s | In Stock | $50 |
| Juniper 1G SFP SX 850nm Optical Transceiver Module | Juniper | Speed: 1Gb/s | In Stock | $50 |
| HPE 1G SFP SX 850nm Optical Transceiver Module | HPE | Speed: 1Gb/s | In Stock | $50 |
| Dell Technologies 1G SFP SX 850nm Optical Transceiver Module | Dell Technologies | Speed: 1Gb/s | In Stock | $50 |
| Intel 1G SFP SX 850nm Optical Transceiver Module | Intel | Speed: 1Gb/s | In Stock | $45 |
Browse all Transceivers & Cables or everything we stock from Cisco.
Specifying a system, not just the part?
Optics and cabling are part of the fabric spec on a cluster build, since both ends and the switch have to agree.