QDD-2X100-LR4-S — Cisco 2x100GBASE-LR4 QSFP-DD Breakout Transceiver Module (SMF, 1310nm, 10km, Dual Duplex CS)
MPN: QDD-2X100-LR4-S|By: Cisco

In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
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Product overview
QDD-2X100-LR4-S is a Cisco 2x100GBASE-LR4 QSFP-DD breakout Transceiver Module (SMF, 1310nm, 10km, dual duplex CS). Optics have to match at both ends and are frequently vendor-coded, so a module that is electrically correct can still refuse to link. Tell us both switch models and we will confirm compatibility before it ships.
We return an itemised quote within 48 business hours, and we say plainly when a part is constrained rather than quoting a date we cannot hold.
Featuring
- Manufacturer
- Cisco
Physical characteristics
- Transceiver Type
- LR4
- 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.
These are the 3 facts we can state about QDD-2X100-LR4-S without inferring anything. Compatibility beyond this is confirmed per platform, on request, before you order.
Where the Cisco QDD-2X100-LR4-S is deployed
- Swapping out a failed transceiver for QDD-2X100-LR4-S under change control
- Replacing an optic that has started erroring
- Cabling a new rack into an installed fabric
Who this part is for
- Data centre teams cabling a new rack to an installed fabric
- Integrators supplying the passive layer with a switch order
- Network teams matching optics at both ends of an existing link
What you get ordering this from us
Ordered by part number
The order is placed against QDD-2X100-LR4-S, not against a description of it, so there is no room for a substitution you did not agree to.
Answered by a human
A quote comes back with the reasoning attached, including the cases where we think you should buy something else.
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 QDD-2X100-LR4-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 QDD-2X100-LR4-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.
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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.
