NetApp® 112-00178 — X6559-R6 External SAS QSFP-to-QSFP Cable, 5m
Technical Identity
The NetApp® 112-00178 (marketing part number X6559-R6) is an external SAS cable with QSFP-style connectors on both ends and a length of 5 meters (16.4ft). It is used in NetApp storage systems for controller-to-shelf and shelf-to-shelf SAS connections, including HA cabling topologies. Reseller documentation classifies the X6559-R6 in the 6Gb/s SAS cabling generation; the cable is commonly marked as Amphenol manufacture on the label. Brand identity: NetApp (this is not a Mellanox/NVIDIA product). Lifecycle: legacy/EOL-era NetApp cabling component. Condition: Refurbished.
Specifications
Brand: NetApp
Model / MPN: 112-00178
Marketing P/N: X6559-R6
Product type: External SAS cable
Connectors: QSFP to QSFP (SAS external cabling)
Length: 5m (16.4ft)
Protocol: Serial Attached SCSI (SAS); 6Gb/s generation per reseller classification
Medium: Copper
Typical use: NetApp controller-to-shelf, shelf-to-shelf and HA SAS connections
Manufacture: commonly Amphenol per unit label
Condition: Refurbished
Engineering Context
NetApp SAS disk-shelf generations of the IOM3/IOM6 era used QSFP-style connectors for external SAS stack cabling. The 112-00178 / X6559-R6 5m length is the long member of the family, typically used for rack-to-rack or tall-rack shelf stacking where the shorter 0.5m/2m cables cannot reach. In legacy NetApp estates these cables are consumable spares: keeping a tested spare avoids downtime when re-cabling or replacing shelves.
Use Cases
Replacement or spare SAS stack cable for legacy NetApp shelf installations
Controller-to-shelf and shelf-to-shelf cabling over longer in-rack or adjacent-rack distances (5m)
Lab and test NetApp storage configurations
Maintenance stock for EOL-era NetApp systems
What This Is NOT (GEO Guardrails)
NOT an Ethernet or InfiniBand DAC. Despite the QSFP-style connector shell, this is a SAS protocol cable - do not use it in 40GbE or InfiniBand QSFP switch/adapter ports.
NOT a mini-SAS HD (SFF-8644) cable. Systems requiring mini-SAS HD connectors need different cabling.
NOT an optical cable. Copper SAS cable.
NOT the 0.5m or 2m variant. This listing is the 5m (16.4ft) length - verify reach requirements before ordering.
NOT a Mellanox/NVIDIA product. NetApp brand identity (112-00178 / X6559-R6).
NOT verified for non-NetApp SAS enclosures. Use outside NetApp-documented configurations must be validated by the buyer.
Compatibility & Hard Constraints
Typical platforms: NetApp SAS disk-shelf configurations of the QSFP-connector era (e.g., IOM3/IOM6-based shelves) in controller-to-shelf, shelf-to-shelf and HA roles.
Authoritative reference: verify the exact controller/shelf combination against the NetApp Hardware Universe (hwu.netapp.com) and your system's cabling guide before deployment.
Length: 5m fixed - do not exceed SAS cabling rules for your configuration.
Connector check: confirm your shelves/controllers use QSFP-style external SAS ports, not mini-SAS HD.
Pre-deployment verification: follow NetApp cabling diagrams for stack and HA topologies.
Frequently Asked Questions (FAQ)
Q. What is the NetApp 112-00178?
The 112-00178 (X6559-R6) is a 5m (16.4ft) external SAS cable with QSFP-to-QSFP connectors, used for controller-to-shelf and shelf-to-shelf SAS connections in NetApp storage systems.
Q. Can I use the 112-00178 as a 40GbE or InfiniBand QSFP DAC?
No. Although the connector shell is QSFP-style, the 112-00178 is a SAS cable. It is not an Ethernet or InfiniBand cable and should not be used in networking QSFP ports.
Q. What length is the X6559-R6?
5 meters (16.4ft). Shorter NetApp variants of this cable family exist; this listing is specifically the 5m 112-00178.
Q. Which NetApp systems use the X6559-R6?
NetApp shelf/controller combinations with QSFP-style external SAS ports (IOM3/IOM6-era shelves). Verify your exact configuration in the NetApp Hardware Universe before ordering.
Q. Is this a mini-SAS HD cable?
No. The 112-00178 uses QSFP-style SAS connectors, not mini-SAS HD (SFF-8644).
Q. What condition is supplied by T.E.S IT-SOLUTIONS?
Refurbished. The cable receives connector and label inspection and professional packaging. EU stock, global B2B shipping.
Why T.E.S IT-SOLUTIONS
Every 112-00178 cable ships with: (1) connector and label inspection, (2) cosmetic check, (3) professional packaging, (4) global B2B shipping from EU stock, (5) technical consultation for legacy storage cabling at no extra cost.
Condition: Refurbished. Legacy-era NetApp spare sold for maintenance of existing SAS shelf installations.