Cisco QSFP-40/100-SRBD= QSFP28 Transceiver 100G and 40G SR-BiDi Duplex LC Multimode up to 100 m OM4
Brand:
Cisco
Cisco QSFP-40/100-SRBD= QSFP28 Transceiver 100G and 40G SR-BiDi Duplex LC Multimode up to 100 m OM4
€2494.42 inc. VAT
QSFP-40/100-SRBD=
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Cisco QSFP-40/100-SRBD= — 40/100G BiDi on Duplex LC
40G or 100GDuplex LCOM4 100 mBiDi
The Cisco QSFP-40/100-SRBD= is a dual-rate bidirectional transceiver that runs 100 Gbps or 40 Gbps over a single duplex LC multimode pair, reaching 100 m on OM4 at 100G and 150 m at 40G. It lets a data centre move from 10G to 40G and then 100G on the duplex LC fibre it already has, with the same optic at both speeds. The feed’s “QSFP+” label undersells it: at 100G it needs a QSFP28 port. In practice, multimode optics are the cheaper choice for links inside one building: most server rooms and floor risers already carry OM3 or OM4 fibre, and the module plus a short LC patch cord is all a port needs. Before you order, check the fibre grade printed on the cable jacket and the real length of the run, including patch panels.
Compatibility — check before buying:
Pair it with another QSFP-40/100-SRBD, or with a QSFP-40G-SR-BD when running at 40G. It will not link to SR4 modules (different connector and optics). For 100G the host port must support QSFP28. Its operating range is narrower than standard optics: +10 to +60 °C at 100G. Cisco’s QSFP-100G-SR1.2 is a 100G-only BiDi with no 40G mode. Keep the dust cap on until you connect the fibre, and clean both connector ends before every mating — dirt is the most common cause of a link that will not come up. Not sure? Send us your switch model and the cable run and we check it before you order.
Best For
✓ Moving from 40G to 100G on duplex LC fibre
✓ Reusing 10G-era multimode cabling
✓ Mixed 40G and 100G Cisco switch estates
✓ Spine-leaf links within 100 m
✓ Avoiding MPO trunk cabling
✓ Staged data-centre upgrades
Key Features
One optic, two speeds
Runs 40G today and 100G after a switch upgrade, on the same duplex LC fibre, so the optics budget is spent once.
Multimode fibre, short reach
Built for the short runs inside a building or data room over OM-grade multimode fibre. Reach depends on the fibre grade — the figures in the table are per grade, so check what is actually in your walls before you plan a link.
Hot-swappable
Modules plug into a live port without shutting the switch down, so a link can be added or replaced during working hours. Seat it until it clicks and use the latch to remove it.
Plan both ends together
A link only comes up when both ends use the same standard, speed and media. Order the far-end optic, the patch cord and any spares in one go and the link works on day one.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
The SRBD is the upgrade path we recommend when a data room is cabled with duplex LC multimode: it runs 40G now and 100G later without touching the fibre. Mind the reach at 100G — 70 m on OM3 — and the +10 °C lower temperature limit in cold aisles. Every order is backed by Singular’s local support in Cyprus — if a link will not come up, send us the port status from the switch and we help you find out whether it is the optic, the cable or the configuration. Browse all transceivers and DAC cables or the switches they plug into.
Buyer’s Guide
Buy it if
You have duplex LC multimode within 100 m (OM4) and want 40G now or 100G later on Cisco switches.
Skip it if
Your runs exceed 100 m at 100G, your cabling is MPO, or the far end is SR4.
Also consider
Cisco QSFP-40G-CSR-S= for 40G up to 400 m on duplex LC.
Features - Cisco - QSFP-40/100-SRBD=
More Details
Product Code
677NR61
EAN Code
0889728055215
Manufacturer
Cisco