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50m(164ft) MSA Standard Compatible 400G QSFP-DD Ethernet Active Optical Cable
50m(164ft) MSA Standard Compatible 400G QSFP-DD Ethernet Active Optical Cable
50m(164ft) MSA Standard Compatible 400G QSFP-DD Ethernet Active Optical Cable
P/N: QDD-QDD-A50
$315.00
1
Solds
4
Reviews
3
Questions
safeguard
4-Year Warranty
30-Day Returns
30-Day Exchange
（1 In Stock）

Product Highlights

Built-in Inphi Chip, COB Packaging
Low Power Consumption <8W Per End
Tested in Targeted Switches for Superior Performance, Quality, and Reliability
Increased Reliability-VCSEL, No MPO Connectors, Low BER
8x50G PAM4 Retimed 400GAUI-69 Electrical Interface
Thin and Light Weight Fiber with High Air Flow for Flexible Routing
OFNP-Rated, Hot Pluggable QSFP-DD MSA Compliant
See more
Specifications
Certification
Connectivity Solutions
Comparison Table
Q&A
Reviews
Resources
50m(164ft) MSA Standard Compatible 400G QSFP-DD Ethernet Active Optical Cable
The 400G QSFP-DD active optical cables are designed for use in 400 Gigabit Ethernet links over OM4 multimode fibers, and contain eight multi-mode fibers(MMF) optic transceivers per end, each operating at data rates of up to 53Gb/s. This active optical cable is compliant with IEEE 802.3cd, OIF-CEI-04.0, QSFP-DD MSA, and QSFP-DD-CMIS-rev4p0. Thin and lightweight AOC cables simplify cable management, enabling an efficient system airflow, which is critical in high-density racks. It is used extensively in cloud and supercomputers due to its low cost, high-value proposition, and increased reliability.
Specifications
Connector Type
QSFP-DD to QSFP-DD
Data Rate
425Gbps to 425Gbps
Media
Fiber
Cable Type
AOC
Cable Length
1m~100m(3ft~328ft)
Outer Diameter
3.0mm
Jacket Material
OFNP
Minimum Bend Radius
30mm
Power Consumption
≤8.0W
Case Operating Temperature
0 to 70°C (32 to 158°F)
Protocol
400 Gigabit Ethernet 400G RoCE
Application
Swicth to Switch Switch to NIC Other Optical Links
Certification
Product
Product
Product
Product
Product
Product
Product
Product
Product
Product
Connectivity Solutions
OEM Switch links：400G QSFP-DD to 400G QSFP-DD
All
OEM Switch links：400G QSFP-DD to 400G QSFP-DD
Comparison Table
Cisco Compatible 400G QSFP-DD AOC, 1m(3ft)
QDD-QDD-A1
Cisco Compatible 400G OSFP to QSFP-DD AOC,1m(3ft)
O400-QDD-A1
Cisco Compatible 400G OSFP to 2x 200G QSFP56 Passive Breakout AOC, 1m(3ft)
O400-2Q200-A1
Cisco Compatible 400G QSFP-DD to 2x 200G QSFP56 Breakout AOC, 1m(3ft)
Q400-2Q200-A1
Connector Type QSFP-DD to QSFP-DDOSFP(Flat Top) to QSFP-DDOSFP(Finned Top) to 2x QSFP56QSFP-DD to 2x QSFP56
Data Rate 425Gbps to 425Gbps425Gbps to 425Gbps425Gbps to 2x 212.5Gbps425Gbps to 2x 212.5Gbps
Media FiberFiberFiberFiber
Cable Type AOCAOCAOCAOC
Cable Length 1m~100m(3ft~328ft)1m~50m(3ft~165ft)1m~50m(3ft~165ft)1m~50m(3ft~165ft)
Outer Diameter 3.0mm3.0mm3.0mm3.0mm
Jacket Material OFNPOFNPOFNPOFNP
Minimum Bend Radius 30mm30mm30mm30mm
Power Consumption ≤8.0W≤8.0W@QSFP-DD ≤10.0W@OSFP≤10.0W@OSFP ≤4.5W@QSFP56≤8.0W@QSFP-DD ≤4.5W@QSFP56
Case Operating Temperature 0 to 70°C (32 to 158°F)0 to 70°C (32 to 158°F)0 to 70°C (32 to 158°F)0 to 70°C (32 to 158°F)
Protocol 400 Gigabit Ethernet 400G RoCE400 Gigabit Ethernet 400G RoCE2x 200G Breakout Ethernet 2x 200G RoCE 2x 200G Breakout Infiniband HDR2x 200G Breakout Ethernet 2x 200G RoCE
Application Swicth to Switch Switch to NIC Other Optical LinksSwicth to Switch Switch to NIC Other Optical LinksSwicth to Switch Switch to NIC Other Optical LinksSwicth to Switch Switch to NIC Other Optical Links
Connector Type
Data Rate
Media
Cable Type
Cable Length
Outer Diameter
Jacket Material
Minimum Bend Radius
Power Consumption
Case Operating Temperature
Protocol
Application
Cisco Compatible 400G QSFP-DD AOC, 1m(3ft)
QDD-QDD-A1
Cisco Compatible 400G OSFP to QSFP-DD AOC,1m(3ft)
O400-QDD-A1
Cisco Compatible 400G OSFP to 2x 200G QSFP56 Passive Breakout AOC, 1m(3ft)
O400-2Q200-A1
Cisco Compatible 400G QSFP-DD to 2x 200G QSFP56 Breakout AOC, 1m(3ft)
Q400-2Q200-A1
QSFP-DD to QSFP-DD
OSFP(Flat Top) to QSFP-DD
OSFP(Finned Top) to 2x QSFP56
QSFP-DD to 2x QSFP56
425Gbps to 425Gbps
425Gbps to 425Gbps
425Gbps to 2x 212.5Gbps
425Gbps to 2x 212.5Gbps
Fiber
Fiber
Fiber
Fiber
AOC
AOC
AOC
AOC
1m~100m(3ft~328ft)
1m~50m(3ft~165ft)
1m~50m(3ft~165ft)
1m~50m(3ft~165ft)
3.0mm
3.0mm
3.0mm
3.0mm
OFNP
OFNP
OFNP
OFNP
30mm
30mm
30mm
30mm
≤8.0W
≤8.0W@QSFP-DD ≤10.0W@OSFP
≤10.0W@OSFP ≤4.5W@QSFP56
≤8.0W@QSFP-DD ≤4.5W@QSFP56
0 to 70°C (32 to 158°F)
0 to 70°C (32 to 158°F)
0 to 70°C (32 to 158°F)
0 to 70°C (32 to 158°F)
400 Gigabit Ethernet 400G RoCE
400 Gigabit Ethernet 400G RoCE
2x 200G Breakout Ethernet 2x 200G RoCE 2x 200G Breakout Infiniband HDR
2x 200G Breakout Ethernet 2x 200G RoCE
Swicth to Switch Switch to NIC Other Optical Links
Swicth to Switch Switch to NIC Other Optical Links
Swicth to Switch Switch to NIC Other Optical Links
Swicth to Switch Switch to NIC Other Optical Links
Questions & Answers
edit icon Ask a question
All (3) Compatibility (1)Installation (1)Performance (1)
Q:

Is polarity important during installation?

by M***m on 2025-08-19 12:56:08

A:

Yes, ensure Type A/B polarity matches across the link.

by AICPLIGHT on 2025-08-19 15:59:59

like icon Helpful 0
comment icon Comment 0
Q:

Are these modules low power?

by X***m on 2025-06-07 16:08:16

A:

Yes, we offer energy-efficient versions with low power consumption.

by AICPLIGHT on 2025-06-08 00:04:02

like icon Helpful 0
comment icon Comment 0
Q:

Can this cable be used with OSFP/QSFP-DD ports?

by m***m on 2025-05-29 14:34:48

A:

Yes, we offer cables with a wide range of interface compatibility.

by AICPLIGHT on 2025-05-29 17:59:58

like icon Helpful 0
comment icon Comment 0
Customer Reviews
edit icon Write a review
All (4) Performance (1)Compatibility (1)Ease of Use (1)Customer Support (1)
T
T***m
2025-09-11 11:19:53
Confirmed Purchase
5.0

Used in our GPU training pod (8x H100s) to connect each server node. Latency remained sub-microsecond, even with large tensor workloads.

link icon Helpful 0
comment icon Comment 0
T
T***m
2025-08-01 21:07:15
Confirmed Purchase
5.0

We had a shipping delay and the support team took ownership and resolved it quickly with a courier reroute.

link icon Helpful 0
comment icon Comment 0
Z
Z***m
2025-07-26 11:07:33
Confirmed Purchase
5.0

Fully compatible with our NVIDIA ConnectX-6 NICs and Mellanox switches. No firmware warnings or handshake delays.

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comment icon Comment 0
2
2***m
2025-06-09 11:05:09
Confirmed Purchase
5.0

Plug-and-play experience was excellent. The cables came clean and ready for immediate deployment.

link icon Helpful 0
comment icon Comment 0
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