Certificates
Compliance certificates	TÜV mark, CE
Features
Hot-Plug support
Operational conditions
Operating temperature (T-T)	0 - 70 °C
Other features
Dimensions (WxDxH)	124 x 0.49 x 19 mm
Packaging data
Package width	53 mm
Package depth	160 mm
Package height	20 mm
Package volume	200 cm³
Package weight	36 g
Performance
SFP transceiver type	Fiber optic
Maximum data transfer rate	100000 Mbit/s
Interface type	QSFP28
Fiber optic connector	MPO-12
SFP transceiver standard	SR4
Maximum transfer distance	100 m
Wavelength	850 nm
Networking standards	IEEE 802.3bm
Fiber ethernet cabling technology	100GBASE
Multi-mode fiber (MMF) supported
Digital Diagnostics Monitoring (DDM)
Power
Input voltage	3.3 V
Power consumption (typical)	2.5 W
Technical data
Article length	12.40cm
Variant	Multi-Mode
Net weight	0.036kg
Weight	0.049kg
Length packaging	0.160m
Article width	1.90cm
Coding	CISCO
Max. distance	100m
Article height	1.10cm
Packaging volume	0.0002m³
Transmission speed	100Gb/s
Height packaging	0.020m
Width packaging	0.053m
Type	QSFP28 module
Weight & dimensions
Width	124 mm
Depth	0.49 mm
Height	19 mm
Weight	1.1 kg

100 Gigabit performance with 100GBASE-SR4: Ideal for modern data centres, spine-leaf architectures and high-performance core networks with high data throughput.
Up to 100 m range: Optimised for multimode fibres (OM4 up to 100 m, OM3 up to 70 m) – perfect for structured high-speed cabling within racks or data centres.
4x25Gb/s at 850 nm (VCSEL array): Four parallel channels, each with 25.78 Gb/s, ensure stable and efficient 100G transmission via an MPO-12 interface.
Digital Diagnostic Monitoring (DDM): Precise real-time monitoring of temperature, voltage, TX/RX power and bias current via I²C interface – for maximum transparency during operation.
MSA and IEEE compliant: Compatible with QSFP28 MSA, IEEE 802.3bm and SFF-8636 – making it widely usable with commercially available 100G switches and routers.
The InLine® QSFP28-100G-SR4 module provides reliable 100 Gigabit Ethernet connections via multimode fibre. With an aggregate data rate of 100 Gb/s (4x25.78 Gb/s), it is ideal for high-performance applications in data centres, enterprise core networks and high-performance server environments.
Transmission is via an 850 nm VCSEL array with PIN receiver structure. Thanks to parallel 4-channel technology, a range of up to 100 metres on OM4 and 70 metres on OM3 fibres is achieved. Connection is via an MPO-12 interface.
With a power consumption of less than 2.5 W, the module remains energy-efficient despite its high bandwidth. Power is supplied via 3.3 V. The operating temperature range of 0 °C to +70 °C makes the module suitable for typical data centre environments.
Digital Diagnostic Monitoring (DDM) enables continuous monitoring of important operating parameters such as temperature (±3 °C), supply voltage (±3 %) and TX and RX power. This allows network conditions to be detected at an early stage and maintenance measures to be planned in a targeted manner.
The module is hot-pluggable and can be inserted or replaced during operation – a clear advantage for high-availability IT infrastructures.
Technical data
Form factor: QSFP28
Standard: 100GBASE-SR4
Transmission rate: 4 x 25.78 Gb/s (100 Gb/s aggregated)
Fibre type: Multimode (OM3 / OM4)
Range: up to 70 m (OM3), up to 100 m (OM4)
Transmitter: 4x 850 nm VCSEL
Receiver: PIN array
Connection: MPO-12
Electrical interface: CAUI-4
Hot-plug capable: Yes
DDM (digital diagnostics): Yes
Supply voltage: 3.3 V
Power consumption: Operating temperature: 0 °C to +70 °C
Compatibility: QSFP28 MSA, IEEE 802.3bm, SFF-8636
Laser class: Class 1
Note on coding:
Our SFP modules are factory-coded – whether for Cisco, Intel or other systems, which may limit the selection.For maximum compatibility, we now program individually according to customer requirements. Please contact your sales representative.