This null modem cable is usually used to transfer data from one PC directly to another PC and features gold-plated contacts for optimal signal transfer. The transmit and receive signals are crossed to ensure proper data transmission. The high-quality cables deliver the data for you quickly and reliably over short distances. Available in a wide array of stock lengths and gender combinations, our offering also allows connections to DB9 (AT) or DB25 (PC) serial ports. Cables in male-to-female configurations are typically used as serial printer cables, while female-to-female versions are typically connecting two PC serial ports. Don't forget, custom lengths are our specialty.