2 PCS W5100 Ethernet Shield Board Module Fits Arduino Uno R3/R4 Mega Due Giga
USD 39.58 USD
Specifications
| Connectivity Technology | Ethernet |
| Material | Copper |
| Unit Count | 2.0 |
| Package Dimensions LxWxH | 4.8x3.27x2.05 Inches |
| Weight | 0.18 Pounds |
You will find that copper here means better signal transfer.

