2170704-1 QSFP28 1x1 Cage Assembly | 100G Ethernet & 28 Gb/s EMI Shielded Receptacle
The 2170704-1 is a premium-grade 1x1 QSFP28 Cage Assembly engineered for next-generation data center architectures. Designed to house high-speed optical transceivers and Direct Attach Copper (DAC) cables, this unibody shielded cage supports ultra-fast data rates up to 28 Gb/s per lane (yielding 112G total throughput for 100GBASE applications). Fabricated from high-durability Nickel Silver, it provides exceptional mechanical strength, heat dissipation, and uncompromising EMI containment for high-density routing hardware.
Manufactured under stringent quality control protocols, the 2170704-1 ensures perfect mechanical mating and extraction forces for QSFP28 MSA-compliant modules. The component maintains strict compliance with IEEE 802.3bm (100G Ethernet) and InfiniBand EDR standards, alongside global environmental certifications including RoHS and REACH, guaranteeing reliability in mission-critical hyperscale computing environments.
Expert Architecture Insight: QSFP28 Belly-to-Belly Layouts
Correction Notice: While some legacy industry documentation mistakenly cross-lists this part under "SFP+" categories, this is strictly a QSFP28 form factor.
For data center architects maximizing 1RU faceplate density, the 2170704-1 is specifically optimized for Belly-to-Belly PCB mounting. This allows engineers to place QSFP28 cages on both the top and bottom sides of the motherboard, doubling the 100G port density on network switches without causing mechanical interference or compromising the required 1.57mm [0.062in] PCB thickness.
Technical Features & EMI Containment
Operating reliably across an extreme temperature range of -55°C to +85°C, this cage is built to mitigate the intense thermal and electromagnetic challenges of 100G environments:
- Press-Fit Termination: Features a robust, solderless Press-Fit board mounting design (2.05mm tail length), eliminating the risk of solder bridging and significantly streamlining automated PCB assembly.
- Internal & External EMI Springs: Equipped with advanced 360-degree internal and external EMI (Electromagnetic Interference) springs. This dual-spring architecture ensures a tight ground connection to both the transceiver module and the equipment bezel, preventing high-frequency RF leakage.
- Nickel Silver Construction: The cage is constructed from high-quality Nickel Silver, which resists oxidation and provides superior long-term shielding effectiveness compared to standard tin-plated brass.
- High-Speed Signal Integrity: Mechanically isolates and shields the 28 Gb/s high-speed differential signal pathways, drastically reducing port-to-port crosstalk in multi-port arrays.
Typical Applications & Industry Use Cases
Due to its pristine 28 Gb/s per channel capability and exceptional EMI shielding, the 2170704-1 is the preferred housing for high-performance computing (HPC):
- Hyperscale Data Centers: 100G Ethernet Top-of-Rack (ToR) and Spine-and-Leaf network switches.
- Telecom Infrastructure: 5G core routing equipment and high-bandwidth optical transport networks (OTN).
- High-Performance Computing (HPC): InfiniBand EDR (Enhanced Data Rate) host channel adapters and clustered storage arrays.
- Enterprise IT: High-density Network Interface Cards (SmartNICs) and hardware firewalls.
| Part Number: | 2170704-1 | Part Status | Active |
| Connector Style | Cage | Connector Type | QSFP28 |
| Number of Positions | - | Mounting Type | Through Hole, Right Angle |
| Termination | Press-Fit | Features | EMI Shielded |
| Port Matrix Configuration | 1x1 Ports | Number of Ports | 1 |
| Data Rate (Max)(Gb/s) | 28 GB/S | Connector Mounting Type | Board Mount |
| Operating Temperature Range | -55 – 85°C | Pluggable I/O Applications | SFP+ Stacked Belly-to-Belly |
| Circuit Application | Signal | EMI Containment Feature Type | Internal/External EMI Springs |
| Included Lightpipe | No | Cage Material | Nickel Silver |
| PCB Thickness (Recommended) | 1.57mm[.062in] | Tail Length | 2.05mm[.081in] |
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Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.
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Power and Wavelength Testing
Test the signal delivering strength and wavelength, to ensure the signal decoding capacity of the receiver, and the wavelength remains consistent from the transmitter to the receiver.
Traffic Testing
Test the bit error rate and packet loss rate, to make them meet the corresponding standards and ensure the performance of transceivers.
Optical Performance Testing
Test the transceivers' eye diagram situation, receiving sensitivity, extinction ratio, wavelength, light-emitting, light-receiving, current and voltage, to ensure the signal quality, stability and reliability of the transmission.
End Face Testing
Check the end face of the transceivers and keep them clean for more stable data transmission, better performance, and durability.
Various Switch Tests
Every module is quality tested for compatibility in the multi-brand switches environment, guaranteeing flawless operations.