Zyxel QSFP100G-SR4 100GbE QSFP28 Multimode Transceiver
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Zyxel
QSFP100G-SR4-ZZ0101F
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Zyxel QSFP100G-SR4 100GbE Multimode Transceiver
100GbEQSFP28MPO12 multimode, 850nmOM3 70m; OM4 100m
The Zyxel QSFP100G-SR4 (SKU QSFP100G-SR4-ZZ0101F) is a single 100GbE QSFP28 optical transceiver for supported short-reach multimode fibre links. It uses an MPO12 connector at 850nm, with maximum distances of 70m on OM3 or 100m on OM4. It is one module, not a link pair or cable; compatible host support and suitable fibre are required.
Best For: For network installations needing a supported 100GbE short-reach link over multimode MPO12 fibre. Confirm the host has a compatible QSFP28 100G port and accepts this optic; Zyxel lists the CX4800-56F and CX3800 Series, with the CX3800 availability footnote indicating Q4 2026.
Before you order: Verify the exact host model, QSFP28 100G port and firmware acceptance; cage shape alone does not establish compatibility or lower-speed support. Use suitable multimode MPO12 cabling with correct polarity and compatible 100G SR4 optics at both ends. Cable and a remote module are not listed as included; a second module is needed only if no suitable remote optic is already available. Actual reach depends on optical-path loss, connectors, splices and matching endpoints. This is not an SFP-family module, RJ45 NIC, switch or media converter, and it does not provide standalone networking or a web dashboard.
What's in the Box
- One Zyxel QSFP100G-SR4 optical module
What It Means in Practice
- OM3 supports up to 70m and OM4 up to 100m; these are maximum distances, and the complete optical path affects usable reach.
- The connection needs an MPO12 multimode cable with the correct polarity and connector configuration, plus compatible 100G SR4 optics and host support at both ends. Zyxel lists MPO-10M as one compatible 10m OM3 cable: MPO12 female-to-female, Type B polarity, 12 cores. This example does not establish that all MPO cables are suitable.
- The module draws power from a compatible host cage; confirm the host can accommodate up to 2.0W and 600mA.
- DDMI can expose temperature, received and transmitted optical power, bias current, supply voltage and threshold alarms when the host firmware supports these diagnostics; the module has no standalone dashboard.
What Will Not Work
- Requires a supported host QSFP28 100G port and firmware/optic acceptance; universal Zyxel or third-party compatibility and lower-speed operation are not established.
- Uses MPO12 multimode fibre at 850nm; it is not a duplex LC single-mode LR4 1310nm 10km optic, BiDi optic or DAC.
- Suitable multimode MPO12 cable is not listed as included. A compatible remote optical endpoint is required; the second module is separate only if needed.
- Removing the module interrupts the physical link; hot-plug capability does not guarantee zero downtime.
- No outdoor or waterproof rating is established; operating temperature is 0–70°C.
- MTBF is a statistical reliability specification, not a guaranteed lifetime or warranty.
Key Features
100GbE QSFP28
For a supported host QSFP28 100G port; verify the exact port and firmware before purchase.
MPO12 multimode optics
850nm SR4 optics with maximum reach of 70m on OM3 or 100m on OM4.
Host-reported diagnostics
DDMI readings and threshold alarms are available where the host firmware supports them.
Low-power SR4 specification
Maximum consumption is 2.0W and maximum current is 600mA; confirm host-cage allowance.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
The SR4 specification gives a clear fibre choice: maximum reach is 70m on OM3 or 100m on OM4, using 850nm multimode optics and MPO12. Its 2.0W maximum consumption and 600mA maximum current are the exact SR4 values.
Buyer’s Guide
✓ Buy it if For network installations needing a supported 100GbE short-reach link over multimode MPO12 fibre. Confirm the host has a compatible QSFP28 100G port and accepts this optic; Zyxel lists the CX4800-56F and CX3800 Series, with the CX3800 availability footnote indicating Q4 2026.
✕ Skip it if Verify the exact host model, QSFP28 100G port and firmware acceptance; cage shape alone does not establish compatibility or lower-speed support. Use suitable multimode MPO12 cabling with correct polarity and compatible 100G SR4 optics at both ends. Cable and a remote module are not listed as included; a second module is needed only if no suitable remote optic is already available. Actual reach depends on optical-path loss, connectors, splices and matching endpoints. This is not an SFP-family module, RJ45 NIC, switch or media converter, and it does not provide standalone networking or a web dashboard.
→ Also consider If the link is single-mode LC or needs a different reach or interface, choose an optic designed for that link instead; this SR4 is not interchangeable with LR4, BiDi or DAC.
Features - Zyxel - QSFP100G-SR4-ZZ0101F
Port Speed
- 100 Gbps
More Details
Product Code
04:537994
EAN Code
4718937649518
Manufacturer
Zyxel