NVIDIA Mellanox MSX6001FR 18-Port FDR InfiniBand Leaf Blade for SX6500-Series Chassis — Lot of 3: This listing is a lot of three (3) plug-in InfiniBand leaf blades, each providing 18 × FDR (56Gb/s) QSFP InfiniBand ports. These are line cards designed to install in the NVIDIA Mellanox SX6500-series modular director switches (MSX6512 and MSX6536); they are NOT standalone 1U switches and cannot operate outside a compatible chassis.
Engineering context. Each MSX6001FR blade carries 18 FDR QSFP InfiniBand ports running at 56Gb/s per port (14Gb/s × 4 lanes, FDR encoding), providing roughly 2Tb/s of aggregate per-blade port bandwidth into the chassis fabric. The blade is a fully managed component of the SX6500 chassis switch fabric and is hot-swappable from the front of the director chassis.
Deployment & use cases. Capacity expansion and replacement-spare provisioning for existing SX6512 (216-port) and SX6536 (648-port) FDR director-class InfiniBand fabrics in HPC clusters, AI/ML training clusters using RDMA, large parallel file systems (Lustre, IBM Spectrum Scale/GPFS), and InfiniBand-attached burst-buffer storage tiers.
Technical specifications.

Type: plug-in InfiniBand leaf blade for SX6500-series director chassis
Ports per blade: 18 × QSFP FDR InfiniBand
Per-port speed: 56Gb/s (FDR, 14Gb/s × 4 lanes)
Per-blade aggregate I/O: ~2Tb/s
Form factor: rack-mountable plug-in blade (front-loading, hot-swappable)
Network management: fully managed (managed via host chassis)
Compatible chassis: MSX6512 (216-port) and MSX6536 (648-port) directors
Connector type: QSFP (FDR)
Quantity in this listing: 3 (Lot of 3)
Brand: NVIDIA Mellanox (Mellanox Technologies Ltd)

Compatibility & constraints. Requires an SX6500-series director chassis with available leaf slots, compatible spine/management modules, and a current chassis firmware revision — these blades will NOT operate as standalone switches and have no independent power supplies. Operates at FDR (56Gb/s); for FDR10 (40Gb/s) interoperability the link will negotiate down. EDR/HDR/NDR speeds are NOT supported by SX6500-series hardware.
Why TES. Each blade is bench-tested by experienced technicians for full chassis recognition and port link-up prior to shipment, in refurbished condition with minimal cosmetic wear. Order handling time is 1–3 business days. Browse our full networking catalog at T.E.S IT-SOLUTIONS.