QSFP-100G-SR4-S — Cisco 100GBASE-SR4 QSFP28 Transceiver Module (MMF, 850nm, 100m, MPO-12)
MPN: QSFP-100G-SR4-S|By: Cisco

Starting from
$85
Indicative — final pricing confirmed with your quote.
In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
Product overview
Cisco lists QSFP-100G-SR4-S as a 100GBASE-SR4 QSFP28 Transceiver Module (MMF, 850nm, 100m, MPO-12). Direct-attach copper is cheaper and lower latency than optics but is limited by length and by what each switch will accept. Tell us the two endpoints and we will say which of the two is right for the run.
Send the quantity you need and we will come back within 48 business hours with availability confirmed, not estimated.
Featuring
- Optical Standard
- 100GBASE-SR4
- Manufacturer
- Cisco
Interfaces / Ports
- Connector
- MPO
Physical characteristics
- Transceiver Type
- SR4
- Product Type
- Transceivers & Cables
- Expedited shipping options are available — rates confirmed with your quote.
- Purchase orders accepted from qualified institutions.
- Compatibility is validated against your server platform before dispatch. Send us the model and we will confirm support.
Published specifications for QSFP-100G-SR4-S. Anything not listed here we will confirm against the manufacturer's documentation before quoting — we would rather answer the question than let you assume.
Where the Cisco QSFP-100G-SR4-S is deployed
- Sourcing QSFP-100G-SR4-S against a build sheet that names it explicitly
- Cabling a new rack into an installed fabric
- Replacing an optic that has started erroring
Who this part is for
- MSPs holding spare optics against a customer SLA
- Data centre teams cabling a new rack to an installed fabric
- Integrators supplying the passive layer with a switch order
What you get ordering this from us
Ordered by part number
Quoted and supplied against QSFP-100G-SR4-S specifically, so what arrives is what your build sheet asks for.
No substitutions without asking
If we cannot supply the exact code we tell you what we can supply and why, rather than shipping an equivalent and letting you find out.
Compatibility checked
We confirm the part is supported on your platform before it ships, rather than leaving the check to you.
Questions buyers ask about this part
- Is QSFP-100G-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-100G-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. Purchase orders are accepted from qualified organisations, net terms are available on approval, and tiered pricing applies at quantity. Tell us how many you need.
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Specifying a system, not just the part?
Optics and cabling are part of the fabric spec on a cluster build — both ends and the switch have to agree.
