"L-com's top of the line offering of D-sub cable assemblies provide maximum protection against data corrupting EMI/RFI. Double shielded cable (copper braid plus aluminum mylar foil) and a custom steel internal enclosure separate these cables from any off the shelf D-sub cable on the market. Ideal for any electrically noisy environment where fans, motors or switches are nearby. Custom lengths and pinouts are available with modest minimum requirements."