740-031981 — Juniper Networks 10GBASE-LR SFP+ Transceiver Module (SMF, 1310nm)
MPN: 740-031981|By: Juniper Networks
Starting from
$50
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
740-031981 is a Juniper Networks 10GBASE-LR SFP+ Transceiver Module (SMF, 1310nm). Optics have to match at both ends and are frequently vendor-coded, so a module that is electrically correct can still refuse to link. This is 10GBASE-LR. Tell us both switch models and we will confirm compatibility before it ships.
If the part is wrong for your platform we will say so and suggest the one that is, which is cheaper for both of us than a return.
Featuring
- Optical Standard
- 10GBASE-LR
- Manufacturer
- Juniper Networks
Physical characteristics
- Transceiver Type
- LR
- 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 4 facts we can state about 740-031981 without inferring anything. Compatibility beyond this is confirmed per platform, on request, before you order.
Where the Juniper Networks 740-031981 is deployed
- Like-for-like replacement of 740-031981 in an existing system
- Holding spare optics against a link-level SLA
- Cabling a new rack into an installed fabric
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
- MSPs holding spare optics against a customer SLA
What you get ordering this from us
Ordered by part number
740-031981 is what is quoted and 740-031981 is what ships; where an alternate code is genuinely the same part we name it rather than swap it silently.
Coded for both ends
Tell us the switch at each end and we confirm the vendor coding before dispatch rather than after a link fails to come up.
Volume pricing
The listed price is per unit; tiered pricing applies at quantity and purchase orders are accepted.
Questions buyers ask about this part
- Is 740-031981 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 740-031981 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.