100G QSFP28 to QSFP28 Passive Direct Attach Copper Twinax Cable (DAC Cable), Generic Compatible | Length 0.5m (2ft)~5m (16ft)
Bullet Points:
• High-Speed Performance: Supports 50G Ethernet, providing fast and reliable connections.
• Energy Efficient: Operates with a max power consumption of 0.5W, offering low energy use.
• Superior Performance: Low insertion loss and ultra-low crosstalk ensure stable data transmission.
• Flexible Installation: 35mm bend radius allows easy routing in tight spaces.
• Cost-Effective & Reliable: Compliant with IEEE802.3cd, and QSFP+ MSA standards for excellent performance.
QSFP-H100G-CU: 100G QSFP28 Passive DAC Cable (Passive, QSFP28 to QSFP28)
The100G QSFP28 DAC Cable offers a cost-effective solution for 100-Gigabit interconnects within racks or between adjacent racks in data centers. This passive copper cable features low insertion loss and ultra-low crosstalk for stable, high-performance data transmission. With a max power consumption of 0.5W, it’s energy-efficient, providing superior bandwidth and port density. Fully compliant with IEEE 802.3, SFF-8665, and QSFP28 MSA standards, it’s ideal for short-range connections, offering a reliable, affordable option for data centers.
Specifications
| P/N | QSFP-H100G-CUXM | Manufacturer Name | FiberWeek |
| Data Rate | 100Gbps | Form Factor | QSFP28 to QSFP28 |
| Cable Length | 0.5m~5m | Cable Type | Passive Twinax |
| Power Consumption | ≤0.5W | Temperature | 0 to 70°C (32 to 158°F) |
| Jacket Material | PVC | Minimum Bend Radius | 33.5mm |
| Protocols | 100 Gigabit Ethernet | Warranty | 5 Years |
Key Features

Compatibility Testing
Optical transceivers are tested with various switches to ensure broad compatibility and reliable performance under different network configurations. The extensive testing ensures integration and functionality in a variety of network environments.
Chip Functionality
The chip of an optical transceiver is the core component responsible for signal processing and data transmission. It converts electrical signals into optical signals for transmission over fiber optic cables and vice versa. High-performance chips ensure efficient data transfer, low latency, and reliability, which are essential for the overall functionality of optical transceivers in modern communication networks

Related Products
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| 10G SFP+ Passive DAC | 25G SFP28 Passive DAC | 50G SFP56 Passive DAC | 100G QSFP28 Passive DAC | |
| Data Rate | 10Gbps | 25Gbps | 50Gbps | 100Gbps |
| Form Factor | SFP+ to SFP+ | SFP28 to SFP28 | SFP56 to SFP56 | QSFP28 to QSFP28 |
| 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) |
| Power Consumption | ≤0.1W | ≤0.5W | ≤0.1W | ≤0.5W |
| Protocols | 10G Gigabit Ethernet | 25G Ethernet Compliant | 50 Gigabit Ethernet | 100 Gigabit Ethernet |
Global Certification
Fiberweek is committed to continuously enhancing our product compliance processes to support long-term sustainable growth. We guarantee that our products meet industry standards, ensuring superior quality and reliability.
Important Note: Using third-party transceivers will not affect your network equipment warranty. Manufacturers clearly state that warranty support remains the same when using compatible products.
Frequently asked questions
If you have placed the order as a guest or just placed an offline order, you can start a return through the “Product Return Request”.
A:If your return is due to an error on our part (you received an incorrect or defective item, etc.), FiberWeek will cover all the shipping cost. Otherwise, the return shipping cost should be born by your own.
Usually, international orders may cause custom duties on import and export. If the items are returned from abroad, and the return is due to our error (you received an incorrect or defective item, etc.), we will cover the custom duties.
A:Usually you can save the shipping fees by printing shipping label we provide on “Return/Replace Review” page when the return/replace request is approved. If you don’t find that shipping label, don’t worry, we will refund you the shipping fees when we received the item(s).
A:Refund is usually processed on Tuesday and Friday after we received the returning items, and you will receive the money within 1 week, depending on the refund method that you use.
A:In most cases, we will refund you the returned items in the same way you paid for them. Also, You can contact your account manager to help you keep the money as “reserved amount” in FiberWeek and spend them for your future FiberWeek order.
Resources
- Datasheet
- Installation Guide
- Compatibility Matrix






