The IT8 mezzanine connector system was developed to enable 56Gbps performance with 
the highest signal density in the market, featuring Quasi-Coaxial Structure and
Polarity-Swap FEXT cancelling technology.
IT8 delivers the most reliable and flexible solution for your current and future needs
to design high speed systems.

Mechanical Features
1. Stacking heights :
-10 to 13mm (Two-piece type)
-14 to 46mm (Three-piece type)
2. No. of Pos. : 120, 192, 288 signals
3. Multiple mounting capability
±0.2mm floating range in X and Y directions
4. Mating alignment : ±1.5mm
5. 1.0×5.5mm BGA interface optimizes routing and SI performance
6. BGA attachment with “Pin in Ball” ensures reliable solder joints with high SMT
processing yields
7. Excellent reflow solderability with superior BGA coplanarity control
8. Compatible with double-sided and inverted reflow soldering

Signal Integrity Features
1. SI capability
-56⁺Gbps (18 to 46mm), 28⁺Gbps (10 to 16mm)
-92ohm impedance (suitable for both 100ohm & 85Ω system)
2. Unique Polarity-Swap FEXT cancelling technology
3. Quasi-Coaxial Structure to prevent noise emission to adjacent lines
4. Insertion loss to Crosstalk Ratio (ICR)