LinkX® InfiniBand Direct Attach Copper Cables

DAC cables are the lowest cost way to create 100G links. DACs are widely used to link servers to memory and storage subsystems because they are passive, consume zero power and have the lowest latency. Mellanox offers a wide range of products for 0.5m to 7m reaches, in SFP and QSFP form factors and data rates of QDR(40G), FDR10(40G), FDR(56G), EDR(100G) and HDR (200G).

In addition to meeting IBTA standards, LinkX certified cables are 100% tested in actual Mellanox systems to ensure optimal signal integrity and the best end-to-end performance. Mellanox DAC cables are designed for use in super computers that have the most stringent requirements. All Mellanox cables are tested to BER 1E-15 which is 1000x few errors than most others. Mellanox passive copper cables offer trouble free installation, long-term reliable operation and they work with 3rd-party switches and adapters.

LinkX® InfiniBand Direct Attach Copper (DAC) Cables
InfiniBand Speed Form Factor Product Brief Special Features Part Number xxx y zz Length Options*
See Conversion below
HDR 200Gb/s QSFP56 LSZH MCP1650-Hxxxyzz 00AE30, 001E30, 01AE30,
002E26, 02AE26, 003E26
EDR 100Gb/s QSFP28 LSZH MCP1600-Exxx 00A, 001, 01A, 002,
02A, 003, 004, 005
FDR 56Gb/s QSFP+ VPI, PVC MC2207130-xxx 00A, 001, 0A1, 002
VPI, PVC MC2207128-xxx 0A2,003
VPI, PVC MC2207126-xxx 004
VPI, LSZH MCP170L-Fxxx 00A, 001, 01A, 002, 003, 004
FDR10 QDR 40Gb/s QSFP+ PVC MC2206130-xxx 00A, 001, 002, 003
PVC MC2206128-xxx 004, 005
QDR 40Gb/s QSFP+ PVC MC2206126-xxx 006, 007
xxx=length code y= pulltab color zz= wire gauge


A = Blue
E = Black
R = Rainbow
30 = 30AWG
26 = 26 AWG
LSZH: Low Smoke, Zero Halogen jacket      PVC: Polyvinyl Chloride jacket
VPI: works for both InfiniBand and Ethernet in end-to-end Mellanox applications