Cisco QSFP-100G-DR-S= QSFP28 Transceiver 100GBASE-DR Single Lambda Duplex LC Single-Mode up to 500 m
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Cisco QSFP-100G-DR-S= QSFP28 Transceiver 100GBASE-DR Single Lambda Duplex LC Single-Mode up to 500 m
€2119.56 inc. VAT
QSFP-100G-DR-S=
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Delivered to Cyprus from EU stock
Local warranty support
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Cisco QSFP-100G-DR-S= — 100G DR Single-Lambda, 500 m
100 GbpsSingle-mode 500 mDuplex LC400G-DR4 ready
The Cisco QSFP-100G-DR-S= is a 100GBASE-DR QSFP28 transceiver that carries 100 Gbps on one wavelength over a duplex LC single-mode pair, up to 500 m. It is designed for data-centre links, and Cisco states it interoperates with 400GBASE-DR4 modules such as the QSFP-400G-DR4-S through fibre breakout cables — so a 400G spine can feed four 100G leaf switches. In practice, single-mode optics are the choice when a link leaves the building or runs several hundred metres: the OS2 fibre used by carriers and campus backbones carries the signal for kilometres with little loss. Before you order, confirm the fibre is single-mode at both ends and note the length and the number of patch panels on the way.
Compatibility — check before buying:
Reach is 500 m. It will not link to LR4, CWDM4 or SM-SR modules — the far end must be DR, or a 400G-DR4 lane via breakout. For longer single-mode runs the QSFP-100G-FR-S= uses the same connector and wavelength but reaches 2 km. Cisco marks this module with an orange pull tab. 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
✓ 100G leaf links from a 400G-DR4 spine
✓ Data-centre runs up to 500 m on single-mode
✓ Single-mode cabling inside the data hall
✓ Cisco Nexus QSFP28 ports
✓ Future-proofing for 400G
✓ Replacing a failed DR module
Key Features
Talks to 400G
Cisco lists interoperability with 400GBASE-DR4 modules via fibre breakout cables, so this module fits directly into a 400G single-lambda design.
Single-mode fibre, long reach
Built for single-mode (OS1/OS2) fibre, the type used between buildings, floors and sites. It will not run over the orange or aqua multimode fibre found in many racks — the fibre type has to match at both ends.
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
We recommend DR optics for single-mode data halls that are planning for 400G: the same fibre plant and connector carry 100G today and connect to 400G-DR4 later. If any run is over 500 m, choose the QSFP-100G-FR-S= instead. 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 need 100G links up to 500 m on single-mode fibre, or 100G lanes from a 400G-DR4 spine.
Skip it if
Your run exceeds 500 m, or the far end is LR4, CWDM4 or SM-SR.
Also consider
Cisco QSFP-100G-FR-S= for 2 km.
Port Spped
- 100 Gbps
Χαρακτηριστικά
Product Code
677UY70
EAN Code
0889728340434
Manufacturer
Cisco