Samtec's ExaMAX® I/O external cable and cage system features EMI shielding to help limit signal degradation and optimize performance, supporting 64 Gbps PAM4 (32 Gbps NRZ) applications. The high-density design features up to 72 staggered differential pairs on individual signal wafers, which increases isolation and significantly reduces crosstalk. For additional signaling, one sideband per column is included. Eye Speed® ultra low skew cable technology improves bandwidth and extends signal reach.
Fully shielded, EMI protected I/O cable system using proven ExaMAX® technology with two reliable points of contact for 64 Gbps PAM4 (32 Gbps NRZ) performance in a cable-to-panel configuration.
Family Overview
Features
Fully shielded external cable and cage for EMI protection
Enables 64 Gbps PAM4 (32 Gbps NRZ) electrical performance on 2.00 mm column pitch
32 or 48 pairs (4 and 6 pairs; 8 columns)
Single or double port cage designed for use with ExaMAX® right-angle board connector (EBTM-RA)
Rugged pull latch for mating/unmating
30 and 34 AWG Eye Speed® ultra low skew twinax cable
Individual signal wafers with staggered differential pair design
One-piece embossed ground structure on each signal wafer to reduce crosstalk
Roadmap: cable-to-cable bulkhead panel connection for increased performance to 112 Gbps PAM4

Contact System
- Two reliable points of contact
- Even when subjected to angled mating
- Meets Telecordia GR-1217 CORE specification
- 2.4 mm mating surface area (contact wipe)
- Minimizes residual stub
- Clear separation between contact points
- Lowest mating force on the market
- Excellent contact normal force
Wafer Design
- Individual signal wafers
- Staggered, differential pair design
- 24-72 pairs
- Ground Plane
- One-piece, embossed ground structure
- Increased isolation significantly reduces crosstalk
- Ground signal placement engineered for 92Ω impedance
- Addresses both 85 and 100Ω applications
- Balanced differential pairs are arranged in columns with zero skew

Stub-Free Mating
- Fully protected terminals on both backplane and daughtercard connectors ensure stub-free mating
- Hermaphroditic mating interface provides reliable mating, protects pins

Ultra-Low Skew Cable Technology
Samtec's proprietary co-extruded Eye Speed® twinax cable technology eliminates the performance limitations and inconsistencies of individually extruded dielectric twinax cabling; improving signal integrity, bandwidth and reach for high-performance system architectures.
Ultra Low Skew Twinax
- Ideal for 28–112+ Gbps applications
- Tight coupling between signal conductors
- Improved bandwidth and reach
- Improved signal integrity and eye pattern opening
- Low skew (< 3.5 ps/meter) over extended lengths
ExaMAX® Backplane Cable SI Evaluation Kit
As data rates increase, trace length on PCBs decrease. Samtec’s high-speed, Flyover® cable assemblies simplify PCB design and limit signal degradation in high data rate applications. The ExaMAX® Backplane SI Evaluation Kit provides system designers and SI engineers an easy-to-use solution for testing ExaMAX® Backplane Cable Assemblies. The ExaMAX® Backplane SI Evaluation Kit delivers a high-quality system with robust mechanical design. Please contact Samtec’s technical experts at KitsAndBoards@samtec.com for additional information.
Part Number: REF-211825-XX

ExaMAX® Backplane SI Evaluation Kit
Next-generation data center equipment requires high-speed data paths across the backplane. Samtec's ExaMAX® high-speed backplane interconnects deliver 56 Gbps electrical performance. The ExaMAX® Backplane SI Evaluation Kit provides system designers and SI engineers an easy-to-use solution for testing the ExaMAX® High-Speed Backplane System. The ExaMAX® Backplane SI Evaluation Kit (REF-205463-01) consists of one ExaMAX® SI Backplane (REF-200839-01) and two ExaMAX® SI Linecards (REF-200840-01). The system routes eight, high-precision differential pairs over a backplane using ExaMAX® connectors in a 4x10 configuration. It supports configurable backplane trace lengths via user-selected paddleboard placement. Users can configure the system with additional ExaMAX® SI Linecards as desired. The ExaMAX® Backplane SI Evaluation Kit delivers a high-quality system with robust mechanical design. Please contact Samtec's technical experts at KitsAndBoards@samtec.com for additional information.
Part Number: REF-205463-01

ExaMAX® SI Backplane
Next-generation data center equipment requires high-speed data paths across the backplane. Samtec's ExaMAX® high-speed backplane interconnects deliver 56 Gbps electrical performance. The ExaMAX® Backplane SI Evaluation Kit provides system designers and SI engineers an easy-to-use solution for testing the ExaMAX® High-Speed Backplane System. The ExaMAX® Backplane SI Evaluation Kit (REF-205463-01) consists of one ExaMAX® SI Backplane (REF-200839-01) and two ExaMAX® SI Linecards (REF-200840-01). The system routes eight, high-precision differential pairs over a backplane using ExaMAX® connectors in a 4x10 configuration. It supports configurable backplane trace lengths via user-selected paddleboard placement. Users can configure the system with additional ExaMAX® SI Linecards as desired. The ExaMAX® Backplane SI Evaluation Kit delivers a high-quality system with robust mechanical design. Please contact Samtec's technical experts at KitsAndBoards@samtec.com for additional information.
Part Number: REF-200839-01

ExaMAX® SI Linecard
Next-generation data center equipment requires high-speed data paths across the backplane. Samtec's ExaMAX® high-speed backplane interconnects deliver 56 Gbps electrical performance. The ExaMAX® Backplane SI Evaluation Kit provides system designers and SI engineers an easy-to-use solution for testing the ExaMAX® High-Speed Backplane System. The ExaMAX® Backplane SI Evaluation Kit (REF-205463-01) consists of one ExaMAX® SI Backplane (REF-200839-01) and two ExaMAX® SI Linecards (REF-200840-01). The system routes eight, high-precision differential pairs over a backplane using ExaMAX® connectors in a 4x10 configuration. It supports configurable backplane trace lengths via user-selected paddleboard placement. Users can configure the system with additional ExaMAX® SI Linecards as desired. The ExaMAX® Backplane SI Evaluation Kit delivers a high-quality system with robust mechanical design. Please contact Samtec's technical experts at KitsAndBoards@samtec.com for additional information.
Part Number: REF-200840-01

VCU110 Examax® Loopback Card
As FPGAs take over the data center, system-level architects require technical support over the entire high-speed serial channel data path. FPGA vendors like Xilinx are working with interconnect partners like Samtec to emulate next generation data center architectures in their FPGA evaluation, development and characterization kits. As an example, the Xilinx Virtex® UltraScaleTM FPGA VCU110 Development Kit features the ExaMAX® high-speed backplane connector system. Pairing these solutions together provides a platform for demonstrating 28 Gbps performance from an FPGA over a backplane. The VCU110 ExaMAX® Loopback Card routes 8 GTY MGTs from the Xilinx Virtex® UltraScaleTM FPGA through the ExaMAX® mated connector pair and back to the FPGA. Four GTY loopback channels contain little or no insertion loss. The summation of VCU110 insertion loss and the engineered loss on four additional GTY loopback channels satisfies the IEEE 802.3bj insertion loss requirements. The combined solution enables evaluation and development of routing FPGA transceivers in a table-top environment.
Part Number: REF-212564-01

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Literature
Technical Documents
Products
EBCE - ExaMAX® I/O 2.00 mm Shielded Panel Mount Cable Socket
Features
Fully shielded external cable and cage for EMI protection
Supports 64 Gbps PAM4 (32 Gbps NRZ) applications
Individual signal wafers with staggered differential pair design; 32 or 48 pairs
Rugged pull latch for mating/unmating
30 and 34 AWG Eye Speed® ultra low skew twinax cable
One-piece embossed ground structure on each signal wafer to reduce crosstalk
EBTC - ExaMAX® I/O 2.00 mm Shielded Die Cast Panel Cage
Features
Fully shielded cage for EMI protection
Single or double port cage designed for use with ExaMAX® right-angle board connector (EBTM-RA), which supports 64 Gbps PAM4 (32 Gbps NRZ) applications and is PCIe® 6.0/CXL® 3.2 capable
Individual signal wafers with staggered differential pair design; 32 or 48 pairs
One-piece embossed ground structure on each signal wafer to reduce crosstalk
Contact Sales
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