QFX-QSFP-40G-LRM4 — Juniper Networks 40GBASE-LR4 QSFP+ Transceiver Module (SMF, 1330nm, 10km, MPO)
MPN: QFX-QSFP-40G-LRM4|By: Juniper Networks
Starting from
$3,075
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
Juniper Networks lists QFX-QSFP-40G-LRM4 as a 40GBASE-LR4 QSFP+ Transceiver Module (SMF, 1330nm, 10km, MPO). 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.
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
- Optical Standard
- 40GBASE-LR4
- Manufacturer
- Juniper Networks
Interfaces / Ports
- Connector
- MPO
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.
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 Juniper Networks QFX-QSFP-40G-LRM4 is deployed
- Swapping out a failed transceiver for QFX-QSFP-40G-LRM4 under change control
- Holding spare optics against a link-level SLA
- Replacing an optic that has started erroring
Who this part is for
- Network teams matching optics at both ends of an existing link
- 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
The order is placed against QFX-QSFP-40G-LRM4, 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.
Reach checked against the run
Fibre type, connector and distance are checked together, so the optic suits the path and not just the port.
Questions buyers ask about this part
- Is QFX-QSFP-40G-LRM4 genuine and is the warranty intact?
- Yes — new and sealed, with the Juniper Networks warranty and the firmware update path intact. We do not sell refurbished stock as new, and we do not source grey-market units.
- Will QFX-QSFP-40G-LRM4 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 — POs from qualified organisations, net terms on approval, and banded pricing once the quantity is worth banding. Send the number and we will price it properly.
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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.