Cisco QSFP-100G-DR-S= 100GBASE-DR QSFP28 optical transceiver
Cisco QSFP-100G-DR-S= 100GBASE-DR QSFP28 optical transceiver
CISCO Modules

Cisco QSFP-100G-DR-S= 100GBASE-DR QSFP28 optical transceiver

Cisco QSFP-100G-DR-S, QSFP-100G-DR-S=, Cisco 100G DR module, 100GBASE-DR transceiver, QSFP28 DR optics, PAM4 optical module, 100G single lambda transceiver, data center DR solution

🚀 Next-Gen 100G Connectivity for Modern Data Centers | Cisco QSFP-100G-DR-S=

Single-Lambda 100G Transmission Over Single-Mode Fiber (Up to 500m)

The Cisco QSFP-100G-DR-S= is a high-performance 100GBASE-DR QSFP28 optical transceiver designed for short-reach single-mode fiber (SMF) connectivity in modern data center environments.
Using PAM4 modulation technology, it delivers 100Gbps over a single wavelength (1310nm), supporting distances up to 500 meters, making it ideal for leaf-spine architectures, high-density deployments, and next-generation cloud infrastructure.
Engineered by Cisco Systems, this module aligns with the evolution toward 400G DR4 ecosystems.


🔥 Why This Module Is a “High-End Buyer Magnet”

✔ Building modern leaf-spine data center architecture? ✔ Preparing for 400G migration? ✔ Need efficient single-mode short-reach solution?
👉 100G DR = the new standard for scalable data centers


⚡ SR4 vs LR4 vs DR

Type
Distance
Fiber
Technology
Use Case
SR4
≤100m
MMF
Parallel (MPO)
Legacy DC
LR4
10km
SMF
CWDM
DCI
DR
500m
SMF
PAM4 (Single Lambda)
Modern DC
👉 DR is the bridge between SR and LR — optimized for new architectures


🧠 Key Features of Cisco QSFP-100G-DR-S=

  • Data Rate: 100 Gbps
  • Technology: PAM4 modulation
  • Wavelength: 1310 nm (single lambda)
  • Distance: Up to 500 m
  • Connector: LC Duplex
  • Fiber Type: Single-mode fiber (SMF)
  • Form Factor: QSFP28
  • Digital Optical Monitoring (DOM): Supported
  • Hot-swappable
  • Optimized for next-gen data center fabrics


🏗️ High-Value Application Scenarios

1. Leaf-Spine Data Center Architecture

  • High-speed east-west traffic
  • Scalable fabric design

2. Cloud & Hyperscale Data Centers

  • High-density server interconnects
  • Efficient fiber usage

3. 400G Migration Preparation

  • DR → DR4 evolution path
  • Future-proof infrastructure

4. Enterprise Data Centers

  • Modern backbone deployment
  • SMF standardization


💡 Why DR is the Future

👉 Traditional solutions:
  • SR = limited distance
  • LR = overkill & expensive
👉 DR solution:
  • Uses SMF (future-proof)
  • Medium distance (500m sweet spot)
  • Lower power & cost vs LR
✅ Best balance of cost, performance, and scalability


🧩 Complete 100G DR Solution

✅ Optical Modules

  • Cisco QSFP-100G-DR-S=
  • Cisco QSFP-400G-DR4 (future upgrade)

✅ Cabling

  • LC-LC single-mode fiber (OS2)

✅ Equipment

  • 100G switches
  • Spine/leaf architecture


📊 Technical Specifications

Parameter
Specification
Form Factor
QSFP28
Data Rate
100 Gbps
Standard
100GBASE-DR
Wavelength
1310 nm
Max Distance
500 m
Connector
LC Duplex
Fiber Type
Single-mode
Modulation
PAM4
Tx Power
-2.9 ~ 4 dBm
Rx Sensitivity
≤ -6.2 dBm
Power Supply
3.3V
Operating Temp
0°C to +70°C
DOM Support
Yes
Compliance
IEEE 802.3cd, QSFP28 MSA, RoHS


❓ FAQ

Q1: What is the advantage of 100G DR?

It offers single-wavelength transmission over SMF with optimal cost and scalability.


Q2: How far can it transmit?

Up to 500 meters over single-mode fiber.


Q3: Is it suitable for future upgrades?

Yes, it aligns with 400G DR4 architecture.


Q4: What fiber is required?

Standard OS2 single-mode fiber with LC connectors.

Cisco QSFP-100G-DR-S, QSFP-100G-DR-S=, Cisco 100G DR module, 100GBASE-DR transceiver, QSFP28 DR optics, PAM4 optical module, 100G single lambda transceiver, data center DR solution


🚀 Get a Quote for Your 100G DR Deployment

👉 Building next-gen data center infrastructure?
  • ✔ Future-ready architecture
  • ✔ Efficient SMF deployment
  • ✔ High-performance connectivity
Contact us now for pricing and availability.