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QSFP-100G-SR4-S
Cisco 100GBASE-SR4 QSFP28 Transceiver Module, 70m OM3 / 100m...
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QSFP-100G-SR4-S is a Cisco QSFP28 optical transceiver module for 100 Gigabit Ethernet short-reach links. The module uses multi-mode fiber as the optical media for short-distance high-density 100G network connectivity. Its host interface plugs into Cisco 100G QSFP ports on supported switches, routers, adapters, and line cards. The optical interface uses an MPO-12 connector for 12-fiber parallel cabling across SR4 lanes. The transmit and receive wavelength window spans 840 nm to 860 nm for optical operation. Maximum link distance reaches 70 m on OM3 and 100 m on OM4 cable grade. The operating temperature class is Commercial for standard indoor network equipment environments. Digital optical monitoring support reports module operating diagnostics through compatible platform management tools and host software. The hardware belongs to Cisco's 100GBASE-SR4 QSFP optics portfolio and maps to the QSFP optics ordering entry.
TX power range delivers -8.4 dBm to +2.4 dBm per lane. RX sensitivity provides -10.3 dBm per lane for the receive path. RX overload point accepts +2.4 dBm per lane before exceeding the listed receive limit. Transmitter architecture uses short-wavelength operation over four parallel optical lanes. Receiver architecture terminates four parallel receive lanes through the SR4 optical path. QSFP-100G-SR4-S follows 100GBASE-SR4 behavior for parallel Ethernet transmission. IEEE 802.3ba requirements govern the 100GBASE-SR4 link specification. IEEE 802.3bm compliance applies to the high-speed electrical interface. At 3.5 W, power consumption stays within Cisco's listed QSFP module budget. The optical specification separates transmit output, receive input, and wavelength values by lane. Power values use dBm units across both transmit and receive measurements. The module envelope follows Cisco's shared QSFP connector module dimensions. Cisco QSFP connector modules typically weigh 100 grams or less. The pull-tab specification uses beige as its module color marker for Cisco.
Compatible families include Mellanox ConnectX-5 and Cisco Network Convergence System 1002. Cisco Network Convergence System 5000 and 5500 families also support listed platform designs. Cisco Nexus 3000, 7700 M3-Series, 9200, and 9300 families fit compatible host planning. Cisco Nexus X9432, X9636, X97160, and X9736 modules align with supported Nexus chassis planning. Data centre interconnect, aggregation, and enterprise campus backbone roles match high-capacity switching paths. Network teams use those families for edge and service provider aggregation designs. Required cable grades are OM3 or OM4. OM5 also appears in Cisco's listed cable grade options. Buy QSFP-100G-SR4-S from ORM Systems in new and certified refurbished condition. Certified refurbished stock receives pre-dispatch optical testing and condition checks. Order QSFP-100G-SR4-S online, check price, or request a quote from ORM Systems. Project refreshes keep procurement aligned with matched module batches. Enterprise and volume buyers receive bulk quotation support for project quantities.
QSFP-100G-SR4-S price is $426.00, a 81.9% saving from the Cisco list price of $2,354.00. QSFP-100G-SR4-S is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QSFP-100G-SR4-S for additional pricing. Browse the full Cisco 100G Optical Modules series or explore all Cisco products.
QSFP-100G-SG-SR4-S sits in a top-of-rack switch and carries 100G Ethernet traffic from server access equipment toward aggregation over MPO-12 multimode fiber. The module uses 850nm SR4 optics across 12-fiber parallel cabling, which matches short in-row or adjacent-row fiber paths inside the data hall. Engineers validate OM3 distance at 70m or OM4 distance at 100m before patching. The result is a high-capacity server access handoff that stays within the installed multimode fiber design.
QSFP-100G-SR4-S operates between Cisco leaf and spine switches where the fabric uses short 100G multimode links. Each module terminates an MPO-12 parallel fiber path and supports 100GBase Ethernet rate across the switch fabric. Network teams place the transceiver in supported Cisco QSFP ports, map fiber polarity, then verify lane alignment and interface status during turn-up. The result is predictable 100G fabric capacity across short rack-to-rack paths without changing to single-mode optics.
The transceiver occupies a Cisco 100G QSFP aggregation port and connects an access or distribution row back to a higher-capacity switching layer over OM3 or OM4 multimode fiber. QSFP-100G-SR4-S keeps the optical design on SR4 parallel cabling, with MPO-12 connectors and short-reach distance limits defining the patch plan. Engineers standardize matching modules at both ends and reserve LC-based optics for different fiber plant. The result is a clean 100G uplink path across short aggregation runs.
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| QSFP-100G-SR4-S |  CPAK-100G-SR4 |  QSFP-100G-CWDM4-S |  CVR-CFP2-CPAK10 |  CXP-100G-SR10 | |
|---|---|---|---|---|---|
| Product Type | Optical Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP28 | QSFP28 | QSFP | CFP2 | CXP |
| Data Rate | 100 Gbps | 100G | 100G | 100G | 100G |
| Connector Type | MPO-12 | MPO | LC | LC | LC |
| Fiber Type | Multi-Mode (MMF) | Multi-mode | Single-mode | Single-mode | Multi-mode |
| Operating Temperature | Commercial (0°C to 70°C) | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
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dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Delivered dependable 100G SR4 performance over OM4 MMF.
Stable MPO connectivity with consistent 100G speeds.
Excellent compatibility and predictable latency.
Reliable short-range 100G module for data centers.
Maintained clean signal levels during stress tests.
Strong throughput and stable integration.
High performance SR4 optics for dense environments.
QSFP-100G-SR4-S is a Cisco 100GBASE-SR4 QSFP optical transceiver for 100 Gigabit Ethernet links over multimode fiber. It uses an MPO-12 connector and supports 12-fiber parallel cabling for short-reach data center and campus backbone connections. The module is designed for Cisco QSFP 100G ports where Cisco platform compatibility confirms support.
QSFP-100G-SR4-S identifies a Cisco QSFP-family 100G optical module using the SR4 short-reach parallel optics standard. SR4 indicates four transmit and four receive optical lanes over multimode fiber. The S suffix identifies the Cisco S-Class version, positioned for standard 100G Ethernet optical links where the listed Cisco host platform supports the module.
QSFP-100G-SR4-S is an optical transceiver module, not a passive DAC, active optical cable, or fiber patch lead. It plugs into a 100G QSFP port and connects to external MPO-12 multimode fiber cabling. Network teams order the transceiver separately from the required MPO trunk, patch cord, cleaning tools, and compatible host equipment.
QSFP-100G-SR4-S sits in Cisco's 100GBASE QSFP optical module portfolio as a short-reach multimode option. It is suited to 70m OM3 and 100m OM4 links, while adjacent Cisco 100G QSFP modules cover shorter multimode, LC-based multimode, 500m single-mode, 2km single-mode, 10km single-mode, and longer reach designs.
QSFP-100G-SR4-S uses the QSFP form factor for Cisco 100G QSFP ports. The product is commonly described as a QSFP28 100G optical module because it operates in 100 Gigabit Ethernet environments. Host platform support must be checked against Cisco compatibility data before ordering, especially for software release and port mode requirements.
QSFP-100G-SR4-S supports 100GBase Ethernet rate for high-bandwidth optical links. The SR4 design uses parallel multimode optics rather than a single duplex LC fiber pair. It is selected when the switch, router, or line card needs a 100 Gigabit Ethernet short-reach uplink or server-facing connection over MPO multimode fiber.
QSFP-100G-SR4-S uses an 850nm nominal wavelength over multimode fiber. Cisco optical specifications list the transmit and receive wavelength range as 840nm to 860nm. This makes the module aligned with short-reach multimode fiber designs commonly used inside data centers, network rooms, and aggregation cabinets with OM3, OM4, or OM5 cabling.
QSFP-100G-SR4-S supports link lengths up to 70m over OM3 multimode fiber and 100m over OM4 multimode fiber. Cisco cabling specifications also list 100m over OM5. Actual link planning should account for fiber grade, connector loss, cleanliness, patching points, and validated support on the Cisco host platform.
QSFP-100G-SR4-S uses an MPO-12 connector for 12-fiber parallel multimode cabling. This is different from duplex LC transceivers that operate over two fiber strands. The module is normally paired with MPO/MTP multimode fiber trunks or patch cords that match the polarity, connector polish, fiber grade, and port layout of the deployment.
QSFP-100G-SR4-S is listed by Cisco with 3.5W power consumption. That figure helps network teams plan thermal load, power budgets, and optics density across 100G line cards or fixed switches. Platform data sheets and release notes should also be reviewed because power, airflow, and optics support are validated at the host system level.
QSFP-100G-SR4-S is used for short-reach 100 Gigabit Ethernet optical links over multimode fiber. Common roles include switch-to-switch uplinks, top-of-rack to aggregation links, spine-leaf fabric connections, and high-speed interconnects inside the same facility. Its MPO-12 parallel fiber interface suits structured cabling environments already designed around SR4 optics.
QSFP-100G-SR4-S fits environments where 100G links stay within short multimode distances, such as data halls, equipment rooms, aggregation rows, or campus network rooms. It is not the right choice for long-distance single-mode fiber runs. The 70m OM3 and 100m OM4 reach profile makes it most useful inside controlled fiber plant boundaries.
QSFP-100G-SR4-S suits high-throughput network paths carrying east-west data center traffic, storage replication traffic, virtualization clusters, backup traffic, or aggregated access traffic. The module provides a 100G optical handoff where copper DAC reach is too short and single-mode optics are unnecessary. It supports dense short-range network designs using parallel multimode infrastructure.
QSFP-100G-SR4-S works in spine-leaf deployments when the leaf and spine switches have Cisco-supported 100G QSFP ports and the cable distance fits the OM3 or OM4 reach limits. Its MPO-12 SR4 interface aligns with short in-row or cross-row links where structured multimode fiber connects switches across racks.
QSFP-100G-SR4-S is supported on Cisco switches and routers with compatible 100G QSFP ports, subject to Cisco's transceiver compatibility matrix. Relevant platform families often include Cisco Nexus, Catalyst, ASR, and NCS systems when the exact hardware, line card, port type, and software release list the module as supported.
QSFP-100G-SR4-S should be used with multimode MPO-12 cabling that matches 100GBASE-SR4 link requirements. OM3 supports up to 70m, while OM4 supports up to 100m. Cable polarity, connector cleanliness, fiber loss, and MPO/MTP pinning should be confirmed before installation because SR4 parallel optics depend on correct lane alignment.
QSFP-100G-SR4-S uses MPO-12 parallel fiber, so it is not a direct fit for duplex LC fiber plant. LC-based Cisco alternatives such as QSFP-100G-SR1.2, QSFP-100G-SR-S, QSFP-100G-CWDM4-S, or QSFP-100G-LR4-S fit different cabling designs. The correct choice depends on fiber type, reach, connector interface, and host support.
QSFP-100G-SR4-S is designed for 100GBASE-SR4 Ethernet links and Cisco states that QSFP modules are interoperable with other IEEE-compliant 100GBASE interfaces where applicable. Module-to-module interoperability should still be checked through Cisco interoperability resources, especially when mixing Cisco optics, third-party optics, different host platforms, or breakout cabling.
QSFP-100G-SR4-S is the better fit when the link needs up to 70m over OM3 or 100m over OM4 multimode fiber. QSFP-100G-SL4 is a shorter-link MPO multimode option with 20m OM3 and 30m OM4 reach. Both use 850nm multimode SR-style parallel optics, but the reach requirement separates the buying decision.
QSFP-100G-SR4-S uses MPO-12 parallel multimode cabling for 100GBASE-SR4 links. QSFP-100G-SR1.2 uses a duplex LC interface and supports 100G short-reach BiDi operation over multimode fiber. QSFP-100G-SR4-S suits existing parallel fiber infrastructure, while QSFP-100G-SR1.2 is more appropriate when the design favors two-strand LC multimode cabling.
QSFP-100G-SR4-S is a multimode MPO-12 transceiver for 70m OM3 and 100m OM4 short-reach links. QSFP-100G-PSM4-S is a single-mode MPO-12 transceiver supporting up to 500m. The connector style is similar, but the fiber type and reach are different, so the installed fiber plant usually determines the correct SKU.
QSFP-100G-SR4-S is for short-reach multimode links using MPO-12 parallel fiber. QSFP-100G-LR4-S is for 10km single-mode links using duplex LC connectors. QSFP-100G-SR4-S fits intra-room or short data center connections, while QSFP-100G-LR4-S fits longer campus, building-to-building, or metro-style 100G links over single-mode fiber.
QSFP-100G-SR4-S pricing depends on condition, quantity, market availability, and procurement timing. New, refurbished, and surplus Cisco optics often price differently because sourcing channels and warranty terms vary. ORM Systems can quote the SKU based on required quantity, target condition, delivery location, and whether the order is part of a larger Cisco optics purchase.
QSFP-100G-SR4-S may be sourced in new, refurbished, or equivalent channel condition depending on current market supply. Refurbished units should be tested before dispatch because optical power, connector condition, EEPROM identity, and host recognition affect deployment success. ORM Systems positions condition clearly during quoting so procurement teams understand what is being supplied.
Production and lifecycle status for QSFP-100G-SR4-S should be checked against current Cisco lifecycle notices and distribution availability at the time of purchase. Many Cisco optical SKUs remain available through reseller, surplus, or refurbished channels after standard supply changes. Buyers should confirm lifecycle status when the deployment requires manufacturer-new equipment or strict support alignment.
QSFP-100G-SR4-S lead time depends on quantity, condition, location, and whether matching optics are required in pairs or batches. Smaller quantities are often easier to source than project volumes. ORM Systems can confirm availability and dispatch timing during quotation, including options for staged delivery when a network refresh needs multiple 100G optics.
Bulk pricing is available when QSFP-100G-SR4-S is purchased in larger quantities or as part of a broader Cisco optics order. Volume requests help reduce per-unit procurement cost and simplify spares planning. ORM Systems can quote matched batches for top-of-rack, aggregation, or fabric deployments where multiple identical 100G SR4 modules are required.
QSFP-100G-SR4-S can be supplied by ORM Systems with warranty options that depend on condition and sourcing route. Product pages commonly reference tested hardware and up to 3-year warranty availability for optical modules. Buyers should review the quoted warranty term, replacement process, and coverage details before approving the purchase order.
A refurbished QSFP-100G-SR4-S should be checked for correct part identification, host recognition, optical transmit and receive behavior, connector condition, and stable operation in a supported 100G environment. Testing reduces the risk of deployment delays caused by failed optics, incorrect coding, contaminated MPO connectors, or modules that do not initialize correctly.
QSFP-100G-SR4-S aligns with 100GBASE-SR4 short-reach multimode Ethernet operation and uses a high-speed electrical interface compliant with IEEE 802.3bm according to Cisco's QSFP module data sheet. Deployment compliance also depends on supported Cisco host hardware, approved software releases, compliant fiber assemblies, and correct MPO multimode cabling practices.
QSFP-100G-SR4-S installs into a supported Cisco 100G QSFP port as a hot-swappable optical module. The MPO-12 multimode patch cord or trunk connects after inspection and cleaning. Network teams then verify host recognition, interface status, optical levels where available, and link stability before placing production traffic on the 100G connection.
QSFP-100G-SR4-S does not require a separate optics license by itself, but the host switch or router must support the module, port speed, and software release. Some Cisco platforms require correct interface configuration, supported transceiver policies, or specific software versions. The compatibility matrix should be checked before ordering optics for a live upgrade.
QSFP-100G-SR4-S requires compatible MPO-12 multimode fiber cabling, usually OM3 or OM4 depending on distance. Cleaning tools, inspection equipment, dust caps, and correct polarity planning are important for parallel optics. Spare modules are also useful in 100G environments because a single failed transceiver can affect a high-capacity uplink or fabric connection.
QSFP-100G-SR4-S can be purchased in the UK through ORM Systems for Cisco 100G optical transceiver requirements. UK buyers can request pricing for new, refurbished, or volume quantities depending on project needs. ORM Systems can support procurement teams that need Cisco optics for replacement, expansion, spares, or network refresh work.
ORM Systems supports international purchasing for QSFP-100G-SR4-S where shipping, export, and sourcing conditions allow fulfilment. International buyers should confirm destination, quantity, condition preference, and required delivery timeline during quotation. This helps align Cisco optics sourcing with customs handling, courier availability, warranty expectations, and project deadlines across different regions.
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