R2557

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Technical Specifications: Neuromorphic Computing System Model R2557

Category	Specification	Details
Model	Product Line	NeuroSynaptic Core Array Series
	Model Number	R2557
Chassis	Form Factor	4U Neuromorphic Processing Unit
	Architecture	Spatiotemporal Dataflow; Event-Based
Neuromorphic Core	Technology	Analog/Digital Memristor-based Crossbar Arrays
	Core Count	4,096 NeuroSynaptic Cores
	“Neuron” Capacity	128 Million “Neurons”
	“Synapse” Capacity	130 Billion “Synapses”
	Precision	Event-based (Spikes), Analog Weights
Event-Based I/O	Input/Output	16x AER (Address Event Representation) Ports
	Data Type	Asynchronous spikes (events)
	Bandwidth	> 1 Tera-Spikes/s
Classical Interface	Host Processors	2 x ARM-based SoC (for system control & encoding/decoding)
	Host Interface	CXL 4.0 / PCIe 7.0
	Host Memory	512 GB LPDDR6
Networking	Inter-System Fabric	Proprietary “Spiking” Fabric for connecting multiple R2557s
Performance	Energy Efficiency	~10,000 GOP/s per Watt (on sparse, event-based workloads)
	Latency	Microsecond-scale response to input events
Power	Idle Power	< 50W (extremely low static power)
	Active Power	~800W (scales with “spike” activity, not clock speed)
Cooling	Cooling System	Passive Cooling & Low-Speed Fans (low heat output)
Physical	Dimensions	(H x W x D) 175 mm x 447 mm x 800 mm
	Weight	~50 kg (110 lbs)
Programming	Model	Spiking Neural Network (SNN) Frameworks
	Abstraction	Describe neural topology, not sequential instructions.