Amphenol SF-NJAAKK0006-000.5M 0.5m (1.6') 400G QSFP112 DAC Cable - 400-Gigabit Ethernet Passive Direct Attach QSFP-112G-PAM4 Cable (32-AWG) - QSFP112 Desktop AI Stacking Cable (OEM PN: NJAAKK-0006)

Buy Amphenol 0.5m (1.6') 400G QSFP112 DAC Cables Now for your Desktop AI and GPU Cluster Supercomputer Needs!  Our 400GBASE-CR4 (400-Gigabit Ethernet) 802.3by/802.3bs, RoCE and NDR InfiniBand qualified passive Direct Attach Copper (DAC) Cables provide next generation performance by combining four SFP112 channels, each operating at speeds of up to 100.0 Gbps (112 Gbps PAM4 signal rate), into one affordable standard-sized 38-position QSFP connector package (QSFP112); capable of combined speeds in excess of 400.0 Gigabits per second.

The Amphenol Cables on Demand 32 AWG SF-NJAAKK0006-000.5M 400G QSFP112 DAC Cable is 100% identical to the Amphenol NJAAKK-0006 QSFP112 DAC Cable and will also directly substitute for the 30 AWG NJAAKKR-0006, for usage with interconnecting (stacking) two desktop AI supercomputer systems via any of their native QSFP112 (ConnectX-7) rated ports.  Our cable is the slightly longer (0.5m vs. 0.4m) length equivalent of the QSFP112 stacking cable, NJAAKK-N911. 

All Amphenol 400G QSFP112 Cables are compatible with the market's leading Grace Blackwell GB10 architecture desktop AI supercomputer platforms equipped with integrated QSFP112 ConnectX-7 (CX7) NIC connectivity, including the DGX Spark, ASUS Ascent GX10, GIGABYTE AI TOP Atom, HP ZGX Nano G1n, Acer Veriton GN100, Lenovo ThinkStation PGX and Dell Pro Max GB10.  Stacking of two units is achieved via the use of a single QSFP112 DAC Cable in any one of its available QSFP112 ports. Note that the GB10's PCIe x4 bus restrictions force the cables to operate at 200G speeds only.

All Amphenol 400G QSFP112 Cables are compatible with the market's leading Grace Blackwell GB300 architecture enterprise class desktop AI supercomputer platforms equipped with integrated QSFP112 ConnectX-8 (CX8) NIC connectivity, including the DGX Station, ASUS ExpertCenter Pro, MSI XpertStation WS300 Series, Gigabyte W775-V10-L01, Dell Pro Precision / Pro Max GB300, Supermicro Super AI Station, HP ZGX Fury and Exxact Valence / TensorEX GB300 Stations. Stacking two GB300 systems requires the use of two of our QSFP112 stacking cables to function, supporting 800G combined speeds.

Our QSFP112 Stacking Cables integrate a newly upgraded 38-position “board-as-connector” design with zinc die-cast backshells for superior EMI resistance, minimal insertion loss, and cross-talk. Featuring our exclusive 32 AWG Amphenol Spectra-Strip SKEWCLEAR® EXD 8-pair wire technology, optimized for 112G PAM4 applications including 400-Gigabit Ethernet (400GBASE-CR4), RDMA over Converged Ethernet (RoCE) and 400G InfiniBand.  SKEWCLEAR EXD wire allows for use of a lighter and more flexible 32 AWG conductor that actually outperforms our competitors' 30 AWG equivalent wire.