Skip to content

300,000+ products in stockAI infrastructure + enterprise IT hardware. Genuine product, full manufacturer warranty.

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

MPN: QSFPP-40GBASE-LR4|By: Juniper

Juniper 40GBASE-LR4 QSFP+ Transceiver (40Gbps, 1310nm SMF, 10km, Duplex LC)

Starting from

$3,360

Indicative. Final pricing is confirmed with your quote.

In Stockships worldwide

Key specs

Connector
LC
Transceiver Type
LR4
All specifications
Condition:
New (authorized channel)
Warranty:
Full manufacturer warranty

Get pricing and availability

Email + WhatsApp so we always reach you.

Prefer your own inbox? Email us about this part

Have questions?

Talk to a hardware specialist.

WhatsAppEmail

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.

Compare other Transceivers & Cables we stock

ModelBrandKey specAvailabilityFrom
10G SFP+ SR 850nm 300m Optical Transceiver ModuleNVIDIA NetworkingSpeed: 10Gb/sIn Stock$40
Cisco 1G SFP SX 850nm Optical Transceiver ModuleCiscoSpeed: 1Gb/sIn Stock$60
Arista 1G SFP SX 850nm Optical Transceiver ModuleAristaSpeed: 1Gb/sIn Stock$50
HPE 1G SFP SX 850nm Optical Transceiver ModuleHPESpeed: 1Gb/sIn Stock$50
Dell Technologies 1G SFP SX 850nm Optical Transceiver ModuleDell TechnologiesSpeed: 1Gb/sIn Stock$50
Intel 1G SFP SX 850nm Optical Transceiver ModuleIntelSpeed: 1Gb/sIn Stock$45

Browse all Transceivers & Cables or everything we stock from Juniper.

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.