Tested for compatibility Lifetime warranty UK & EU support
+44 203 006 1170 contact@carritech.com LinkedIn Carritech.com
EN
EN English ES Spanish IT Italian FR French PT Portuguese
Quote My List
High stock levels
QSFP28-40/100G-SM4-HPE
Compatible optical transceiver

HPE QSFP28-40/100G-SM4-HPE Compatible QSFP28 BiDi 850/880/910/940nm 100m DOM Duplex LC/UPC MMF Optical Transceiver Module

Form Factor: QSFP28
Max Reach: 100M
Interface Type: LC
Media: MM
Part number QSFP28-40/100G-SM4-HPE

40/100G QSFP28 SRBD 100M

High-performance QSFP28 bi-directional transceiver for 40G/100G Ethernet over multimode fiber (MMF), supporting dual-wavelength 850/900 nm PAM4 transmission with up to 100 m reach on OM4 fiber. Optimized for short-range data center interconnects with LC duplex interface and low power consumption.

Get Price Now Request Samples

Quality assured Tested, compliant and backed by lifetime warranty.

Lifetime Warranty
FCC Mark
CE Mark
RoHS Compliant
ISO 9001
ISO 14001
Product information

QSFP28-40/100G-SM4-HPE Details

Review the technical specifications, applications, features, delivery information and warranty coverage for this product.

Specifications

01
The 40/100G QSFP28 SRBD Optical Transceiver is a high-performance, multi-rate module designed for short-range communication over multimode fiber (MMF). This transceiver supports both 40G and 100G Ethernet standards, utilizing a dual-wavelength VCSEL bi-directional optical interface operating at 850nm and 900nm. It offers an aggregate bandwidth exceeding 100Gbps and is compatible with QSFP28 MSA and IEEE 802.3bm standards. Designed to operate over OM3 MMF up to 70 meters and OM4 MMF up to 100 meters, the transceiver is ideal for data center interconnects, switch and router connections, and backplane applications.

The module operates on a single +3.3V power supply with power consumption below 3.5W and functions reliably within a temperature range of 0°C to 70°C. With a duplex LC optical interface, it allows the reuse of existing cabling infrastructure. The transceiver employs PAM4 modulation for two 50Gbps electrical channels, transmitting and receiving data optically over a single LC duplex fiber. Its advanced design enables compatibility with proprietary protocols, making it a versatile choice for high-speed networking environments. Additionally, it complies with RoHS standards, underscoring its environmentally friendly construction.

The HPE QSFP28-40/100G-SM4-HPE Compatible is a pluggable QSFP28 SR transceiver designed for duplex short-range 40G and 100G Ethernet links. It multiplexes four 25.78125 Gb/s electrical lanes into two 50 Gb/s PAM4 optical channels, using bi-directional VCSEL technology at 850 nm and 900 nm wavelengths. Transmission distances reach up to 70 m on OM3 MMF and 100 m on OM4 MMF. The module supports a single +3.3 V power supply with power dissipation under 3.5 W, and operates in a 0 °C to 70 °C case temperature range. It uses a duplex LC connector for optical connections and a 38-contact QSFP28 edge connector for electrical interface.

Key specifications

  • Form factor / standard: QSFP28, MSA compliant, IEEE 802.3bm 100G XLPPI electrical interface.
  • Aggregate bandwidth: 100 Gb/s.
  • Reach: 70 m (OM3) / 100 m (OM4).
  • Optical interface: Dual-wavelength VCSEL, PAM4 modulation, 850 nm (CH1) and 900 nm (CH2).
  • Connector: LC duplex.
  • Power consumption: 2.5–3.5 W max; supply current 0.75–1.0 A.
  • Supply voltage: 3.13–3.47 V.
  • Operating case temp: 0 °C to +70 °C.
  • Compliance: RoHS.

Optical characteristics (per channel)

Parameter Value
Wavelengths 850 nm (CH1), 900 nm (CH2)
Average TX power −6 to +4 dBm
Extinction ratio ≥ 3 dB
Receiver sensitivity ≤ −8 dBm
Max input power +0.5 dBm
LOS assert / de-assert −30 to −10 dBm
Receiver reflectance ≤ −15 dB

Applications

02
  • 100G Ethernet interconnects within and between racks in data centers.
  • Switch and router connections in datacom and telecom networks.
  • Data aggregation and backplane links requiring high-density, short-reach optics.
  • Proprietary high-bandwidth applications leveraging LC duplex cabling.

Features

03
  • Bi-directional dual-wavelength VCSEL technology (850/900 nm PAM4).
  • Supports both 40G and 100G Ethernet over MMF.
  • Duplex LC connector, enabling reuse of existing cabling.
  • Compact QSFP28 form factor with hot-pluggable design.
  • Low power operation (< 3.5 W) for efficient deployment.
  • Compliant with IEEE 802.3bm, SFF-8636, QSFP28 MSA.
  • No digital diagnostic monitoring (DDM/DOM).

Delivery

04

At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers, including the QSFP28-40/100G-SM4-HPE, is designed to cater to various requirements, ensuring that you receive the best solutions for your projects. We understand the importance of timely delivery, and our efficient processes are geared towards providing you with the products you need as quickly as possible. Our dedicated team works tirelessly to ensure that your orders are processed and dispatched promptly, so you can rely on us for swift and reliable service.

We recognise that every project is unique, and our flexible approach allows us to adapt to your specific needs. Whether you require immediate delivery or have more complex requirements, we are here to support you every step of the way. Our commitment to customer satisfaction means that we go above and beyond to ensure that you receive your SFP transceivers in a timely manner, without compromising on quality. Trust Carritech to deliver the solutions you need, when you need them.

Warranty

05

At Carritech Optics, we stand by the quality and reliability of our optical transceivers. That’s why we proudly offer a lifetime warranty on all products as a testament to our commitment to excellence and customer satisfaction.

What Does Our Lifetime Warranty Cover?

Our lifetime warranty provides comprehensive coverage for the entire lifecycle of your optical transceivers, ensuring you experience complete peace of mind when choosing Carritech Optics. The warranty covers:

  • Defects in Materials and Workmanship: If your product experiences any issues related to manufacturing or materials, we’ll repair or replace it free of charge.
  • Performance Assurance: Our optical transceivers are rigorously tested to meet industry standards, and we guarantee they’ll perform as expected in your network environment.

Easy Claims Process

Should you ever need to make a warranty claim, our team is here to assist you. Simply contact our support team with your product details, and we’ll guide you through a quick and hassle-free process to resolve the issue.

Your Network’s Performance, Guaranteed

Carritech Optics is dedicated to providing high-quality optical solutions that you can trust for the long haul. With our lifetime warranty, you can confidently invest in our products, knowing that we’re with you every step of the way.

Datasheet

06

Enter your details below to access the datasheet for QSFP28-40/100G-SM4-HPE.

After submitting, you’ll be redirected to the datasheet download.

Fast Worldwide Delivery

We ship to over 100 countries, ensuring your parts reach you quickly and reliably wherever your business operates.

Extensive Global Inventory

Thousands of optical transceivers in stock and ready to ship, helping you keep your networks running without delay.

Fully Customisable Labelling

Customise labels tailored to your business with flexible designs, branding, and specific information.

Get in touch

Send us your requirements.

Our team of multilingual professionals are here to help you to understand our products and fulfil your requirements. Simply enter your details below and our team will be in touch.

Talk to us today.

If you’d prefer to speak to someone right away, you can call us:

+44 0203 006 1170

Request product samples

Enter your details below to request samples for our optical transceivers.

Request Pricing

CT-Q40/100-SRBD QSFP28 BiDi 100m