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200G
QSFP-DD to 4x 50G QSFP28 Active Optical Cables (AOC) are high-performance breakout assemblies designed to scale existing 200G infrastructure to four 50G devices. These cables typically integrate one QSFP-DD SR8 module at the 200G end and four 50G QSFP28 SR2 modules at the breakout ends.Technical Specifications
- Architecture: Most 200G-to-4x50G AOCs use 8 lanes of 25G NRZ (Non-Return to Zero) modulation to achieve an aggregate data rate of 200Gb/s.
- Transmission Distance: Supports distances up to 70m using OM3 multimode fiber or up to 100m using OM4 fiber.
- Power Consumption: Generally less than 4W for the 200G QSFP-DD end and 1.5W for each 50G QSFP28 end.
- Compliance: Fully compliant with QSFP-DD MSA, QSFP28 MSA, and IEEE 802.3bm standards.
Form Factor and Compatibility
While the query refers to "QSFP28-DD," the industry standard for 200G/400G double-density ports is QSFP-DD (Quad Small Form-factor Pluggable Double Density).
- QSFP-DD: Features 8 lanes, doubling the capacity of the earlier 4-lane QSFP28 standard.
- Backward Compatibility: QSFP-DD ports are designed to be backward compatible with existing 100G QSFP28 modules.
- InfiniBand Support: These cables are frequently used for InfiniBand EDR (100G) and high-performance computing (HPC) applications.
Key Benefits over Passive Copper (DAC)
Compared to Direct Attach Copper (DAC) breakout cables, AOCs offer several advantages for data center environments:
- Reach: AOCs can transmit up to 100m, whereas DACs are limited to very short distances (typically <3m) due to signal attenuation.
- Interference: Fiber optic AOCs are immune to electromagnetic interference (EMI).
- Management: AOCs are thinner and lighter than DACs, simplifying cable management and improving airflow in high-density racks.
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4 × 50G to 200G QSFP28-DD
Fibertop
https://www.fibertopsfp.com › 4-50g-to-200g-qsfp28-dd
Fibertop
https://www.fibertopsfp.com › 4-50g-to-200g-qsfp28-dd
SKU: QFP-AC14DG-xxMC Product Highlights 8 channels full-duplex transceiver modules Transmission data rate up to 26Gbps per channel Compliant with QSFP DD ...
People also ask
What is the difference between QSFP28 and DD?
Its main difference when compared to QSFP56 or QSFP28 is that the QSFP-DD name states – double density, which means that its electrical lines are doubled from 4 to 8. 8 channels modulated with NRZ results of 25Gbps per channel, which totals to 200Gbps.Jun 15, 2022
QSFP-DD vs QSFP28 vs QSFP56: Complete Comparison Guide
EDGE Optical Solutions
https://edgeoptic.com › blog › qsfp-dd-vs-qsfp28-qsfp56...
EDGE Optical Solutions
https://edgeoptic.com › blog › qsfp-dd-vs-qsfp28-qsfp56...
Is QSFP-dd compatible with QSFP28?
QSFP-DD ports can accommodate QSFP-DD, QSFP56, QSFP28 and QSFP+ products.
QSFP-DD, QSFP56, QSFP28, and QSFP+ compatibility
HPE Aruba Networking
https://arubanetworking.hpe.com › xcvrs › qsfp-DD-comp
HPE Aruba Networking
https://arubanetworking.hpe.com › xcvrs › qsfp-DD-comp
What is 400G QSFP-DD to 4X100G QSFP28?
The 400G QSFP-DD to 4x 100G QSFP28 breakout active optical cables are designed for use in 400 Gigabit Ethernet links over OM3 multimode fibers, each operating at data rates of up to 53.125Gbps per channel for QSFP-DD by PAM4 modulation and 25.78128Gbps per channel for QSFP28 with FEC support.
7m (23ft) Generic Compatible 400G QSFP-DD to 4 x 100G QSFP28 ...
FS.com
https://www.fs.com › products
FS.com
https://www.fs.com › products
What is the difference between QSFP+ and QSFP28?
QSFP+ (Quad Small Form-factor Pluggable Plus) is designed to support data rates of up to 40 Gigabits per second (Gbps) per port. On the other hand, QSFP28 supports data rates of up to 100 Gbps per port, making it capable of higher bandwidth and faster transmission.
What is the QSFP, QSFP+, QSFP28, QSFP-DD？Different of ... - Sopto
Sopto
https://www.sopto.com.cn › sp_news › show-24553
Sopto
https://www.sopto.com.cn › sp_news › show-24553
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200G QSFP28-DD To 4x 50G QSFP28 AOC(1～100m)
GIGALIGHT
https://www.gigalight.com › 200g-qsfp-dd-4x-50g-qsfp...
GIGALIGHT
https://www.gigalight.com › 200g-qsfp-dd-4x-50g-qsfp...
The GIGALIGHT 200G QSFP28-DD to 4x 50G QSFP28 AOC active optical cable is used for short-distance branch interconnection between internal devices in the data ...Read more
Customized 200G QSFP-DD to 4 x 50G QSFP28 Passive ...
FS.com
https://www.fs.com › ... › DAC/AOC/ACC/AEC Custom
FS.com
https://www.fs.com › ... › DAC/AOC/ACC/AEC Custom
The 200G QSFP-DD to 4x 50G QSFP28 Breakout Active Optical Cable operates over passive copper, which requires no additional power to ensure quality connectivity ...Read more
$161.00Free delivery over $79Free 30-day returns
Introduction and application of 200G-QSFP28-DD AOC ...
Etulinktechnology
https://www.etulinktechnology.com › blog › introductio...
Etulinktechnology
https://www.etulinktechnology.com › blog › introductio...
The 200G QSFP28-DD to 50G QSFP28 AOC is widely used in data center 200G to 4-way 50G Ethernet branch link. Advantages of 200G QSFP28-DD AOC active optical cable.Read more
200G QSFP28-DD to 4 x 50G QSFP28 AOC
Fibertop
https://www.fibertopsfp.com › 200G AOC
Fibertop
https://www.fibertopsfp.com › 200G AOC
The Technologies 4 × 50G to 200G QSFP28-DD AOC is an Eight-Channels, Pluggable, Parallel, Fiber-Optic QSFP DD to 4 x QSFP28 Breakout 2x50Gbps Ethernet ...
200G QSFP-DD to 4x50G QSFP28 Active Optical Cable
cloudswit.ch
https://cloudswit.ch › Optical Transceiver
cloudswit.ch
https://cloudswit.ch › Optical Transceiver
The 200G QSFP-DD to 4x50G QSFP28 breakout AOC cable connects in 200Gbps Gigabit Ethernet lines using OM3 or OM4 cables. Each QSFP-DD port has eight ...Read more
200G QSFP DD to 4 x QSFP28 Breakout Active Optical Cable
FIBERSTAMP
https://www.fiberstamp.com › datasheets › 200g-...
FIBERSTAMP
https://www.fiberstamp.com › datasheets › 200g-...
PDF
This AOC is a high performance module for short-range multi-lane data communication and interconnection applications. It integrates eight data lanes in each ...Read more
200G QSFP28-DD Active Optical Cables
AscentOptics
https://ascentoptics.com › 200g-qsfp28-dd-aoc
AscentOptics
https://ascentoptics.com › 200g-qsfp28-dd-aoc
200G QSFP-DD AOC cables support length up to 100 meters over OM3/OM4 MMF,providing power-efficient connectivity for data center interconnects ...
SFP-DD vs. QSFP28 AOC: What is The Difference
QSFPTEK
https://www.qsfptek.com › qt-news › shp-dd-vs-qsfp28...
QSFPTEK
https://www.qsfptek.com › qt-news › shp-dd-vs-qsfp28...
Jan 23, 2026 — QSFP28 employs a 4×25G NRZ architecture, while SFP-DD utilizes a 2×50G PAM4 architecture. What other differences exist between these two ...Read more
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1m (3ft) Dell Compatible 200G QSFP-DD to 4 x 50G ...
FS.com
https://www.fs.com › ... › 200G QSFP-DD/QSFP56
FS.com
https://www.fs.com › ... › 200G QSFP-DD/QSFP56
It provides a connection of a 200G QSFP-DD port on one end and 4x QSFP28 DAC ports on the other end and is suitable for cost-effective close-range ...Read more
$174.00Free delivery over $79Free 30-day returns
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