QSFP-H40G-AOC-25M — Cisco 40GBASE QSFP+ Active Optical Cable, 25m
MPN: QSFP-H40G-AOC-25M|By: Cisco

Starting from
$970
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-H40G-AOC-25M as a 40GBASE QSFP+ active optical cable, 25m. 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.
Tell us the switch at each end and we will confirm the coding before anything ships, not after it fails to link.
Featuring
- Cable Length
- 25m
- Manufacturer
- Cisco
Physical characteristics
- Cable Type
- Active
- 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.
Specifications for QSFP-H40G-AOC-25M as published by Cisco. Where a value is absent it is because we could not verify it, not because it does not exist — ask and we will check.
Where the Cisco QSFP-H40G-AOC-25M is deployed
- Sourcing QSFP-H40G-AOC-25M against a build sheet that names it explicitly
- Cabling a new rack into an installed fabric
- Holding spare optics against a link-level SLA
Who this part is for
- Network teams matching optics at both ends of an existing link
- MSPs holding spare optics against a customer SLA
- Data centre teams cabling a new rack to an installed fabric
What you get ordering this from us
Ordered by part number
The order is placed against QSFP-H40G-AOC-25M, not against a description of it, so there is no room for a substitution you did not agree to.
Volume pricing
The listed price is per unit; tiered pricing applies at quantity and purchase orders are accepted.
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.
Questions buyers ask about this part
- Is QSFP-H40G-AOC-25M genuine and is the warranty intact?
- Yes — new and sealed, with the Cisco warranty and the firmware update path intact. We do not sell refurbished stock as new, and we do not source grey-market units.
- Will QSFP-H40G-AOC-25M 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.
