LinkX-certified cables are 100 percent tested in actual NVIDIA GPU and switching systems to ensure optimal signal integrity and the best end-to-end performance. NVIDIA DAC cables are designed for use in supercomputers and hyperscale systems that have very stringent requirements. All NVIDIA cables are tested to bit error ratios (BER) lower than IEEE industry standards. They’re available in lengths from 0.5m to 7m, in small form-factor pluggable (SFP) and quad small form-factor pluggable (QSFP) options, and with 10G/25G-non-return-to-zero (NRZ) and 50G-4-level pulse amplitude modulation (PAM4).
The low-loss 25G- NRZ-based DAC cables support the IEEE CA-N and CA-L specifications. When used at <2 meters, they enable running switches with NO-forward error correction (FEC) or reduced-FEC to save latency and power.