QSFPP-40GBASE-LR4: Juniper 40GBASE-LR4 QSFP+ Transceiver (40Gbps, 1310nm SMF, 10km, Duplex LC)
MPN: QSFPP-40GBASE-LR4|By: Juniper

Starting from
$3,360
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
QSFPP-40GBASE-LR4 is a Juniper 40GBASE-LR4 QSFP+ Transceiver (40Gbps, 1310nm SMF, 10km, duplex LC). 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.
Quotes are itemised down to the accessories, so nothing that is needed to make the part work is left off and discovered later.
Specifications
General
- Manufacturer part number
- QSFPP-40GBASE-LR4
- Product Type
- Transceivers & Cables
- Manufacturer
- Juniper
Technical specifications
- Transceiver Type
- LR4
Interfaces & connectivity
- Connector
- LC
- Optical Standard
- 40GBASE-LR4
These are the 5 facts we can state about QSFPP-40GBASE-LR4 without inferring anything. Compatibility beyond this is confirmed per platform, on request, before you order.
Where the Juniper QSFPP-40GBASE-LR4 is deployed
- Like-for-like replacement of QSFPP-40GBASE-LR4 in an existing system
- Replacing an optic that has started erroring
- Bringing up a new link between two existing switches
Who this part is for
- Procurement buying optics in quantity for a scheduled build
- MSPs holding spare optics against a customer SLA
- Integrators supplying the passive layer with a switch order
What you get ordering this from us
Ordered by part number
QSFPP-40GBASE-LR4 is what is quoted and QSFPP-40GBASE-LR4 is what ships; where an alternate code is genuinely the same part we name it rather than swap it silently.
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 QSFPP-40GBASE-LR4 genuine and is the warranty intact?
Yes. It ships new in Juniper 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 QSFPP-40GBASE-LR4 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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| Intel 1G SFP SX 850nm Optical Transceiver Module | Intel | Speed: 1Gb/s | In Stock | $45 |
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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.
