What is the switching capacity and throughput?

The switch provides 1.44 Tbps (14.4 Tbit/s) switching capacity and 1.08 Bpps throughput, supporting full line-rate performance across all ports for high-density access switching in datacenters.

What is the latency performance?

Latency is as low as 550 ns, making it suitable for latency-sensitive applications like high-frequency trading, NVMe storage, and virtualized environments requiring minimal delays.

What are the physical dimensions and weight?

It is a 1RU rack-mountable switch weighing 9.9 kg, with front-to-back airflow for efficient cooling in standard data center racks. Dimensions align with typical 19-inch rack standards.

What is the power consumption?

Maximum power consumption is 335 W with redundant AC power supplies, allowing predictable energy planning. It includes redundant fans for reliability in 24/7 operations.

Is it suitable for datacenter top-of-rack deployment?

Yes, the 1RU form factor, high port density, 1.44 Tbps capacity, and front-to-back airflow make it ideal for top-of-rack access, aggregating server traffic to spine switches efficiently.

QFX5100-48T-AFO - Juniper QFX5100-48T-AFO 48x Tri-Speed RJ45 6x40GbE 1RU Switch

Name: Juniper QFX5100-48T-AFO 48x Tri-Speed RJ45 6x40GbE 1RU Switch
Brand: Juniper
SKU: QFX5100-48T-AFO
Price: 1285 USD
Availability: InStock

QFX5100-48T-AFO - Juniper QFX5100-48T-AFO 48x Tri-Speed RJ45 6x40GbE 1RU Switch | US IT Hardware

Product overview

The Juniper QFX5100-48T-AFO is a high-performance Layer 2/3 Ethernet switch from the QFX5100 series, designed for datacenter access. It features 48 tri-speed RJ-45 ports supporting 100 Mbps, 1 GbE, and 10 GbE speeds, plus 6 x 40 GbE QSFP+ ports and 24 x 10 GbE SFP+ via breakout cables. With a switching capacity of 1.44 Tbps (14.4 Tbit/s per some sources) and throughput of 1.08 Bpps, it delivers low latency of 550 ns. The 1RU rack-mountable form factor includes front-to-back airflow for efficient cooling, weighs 9.9 kg, and consumes 335 W. Ideal for high-density 10GbE deployments, it supports advanced features like 4096 VLANs and 4000 firewall filters. Compatible with Junos OS, it enables orchestration in data centers, campuses, and HPC environments, ensuring scalable, low-latency connectivity for enterprise IT infrastructure.

1.44 Tbps capacity, 1.08 Bpps throughput for dense 10GbE
48x tri-speed RJ-45 (100M/1G/10G) + 6x 40GbE QSFP+ ports
550 ns low latency in 1RU front-to-back airflow design
335 W power draw, 9.9 kg weight for efficient deployment
Layer 2/3 datacenter access switch with Junos OS support
24x 10GbE SFP+ via breakout for flexible uplinks

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	QFX5100-48T-AFO
Brand	Juniper
Condition	Refurbished
Model	QFX5100-48T-AFO
Product Line	QFX5100 Series
Product Type	High-performance Ethernet Switch for datacenter access
MSTP instances	64
VSTP instances	253
Number of ports per LAG	32
Number of FCoE VLANs/FC Virtual Fabrics	4,095
Number of link aggregation groups (LAGs)	128

Compatible systems

No compatibility data found in available sources

Best for

Datacenter Access
Provides dense 48x tri-speed RJ-45 ports at 10GbE with 1.44 Tbps switching capacity and 550 ns latency, ideal for server connectivity in high-performance environments.
Top-of-Rack Switching
1RU form factor with front-to-back airflow and 6x 40GbE QSFP+ uplinks supports efficient rack deployment and aggregation to core switches.
High-Performance Computing
Delivers 1.08 Bpps throughput and low 550 ns latency, enabling fast data transfer in HPC clusters with support for Layer 2/3 features.
Campus Aggregation
Tri-speed ports (100M/1G/10G) and 24x 10GbE SFP+ via breakout offer flexible connectivity for aggregating campus edge traffic.

Frequently asked questions

What are the port configurations on the QFX5100-48T-AFO?

Details

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Memory	8 GB RAM, 32 GB SSD storage

CPU	1.5 GHz dual-core Intel CPU

Network & Communication

Latency	550 ns
Throughput	1.08 Bpps
ARP entries	48,000
Jumbo frame	9,216 bytes
Buffer capacity	12MB
Switching Capacity	14.4 Tbit/s
IPv4 unicast routes	128,000 prefixes; 208,000 host routes; 644 ECMP paths
IPv6 unicast routes	64,000 prefixes
IPv4 multicast routes	104,000

Max Wattage	335 W
Power Supplies	2 AC
Power Consumption	335 W

QSFP+ Ports	6 x 40GbE
Ethernet Ports	48 x Tri-Speed RJ-45 (100 Mbit/s/1 GbE/10 GbE); 6 x 40 GbE QSFP+; 24 x 10 GbE SFP+ (with breakout cables)
10GbE SFP+ Ports	24 (with breakout cable)

Juniper QFX5100-48T-AFO 48x Tri-Speed RJ45 6x40GbE 1RU Switch

Product overview

Featuring

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Storage

Processor

Network & Communication

Security

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Weight	9.9 kg
Dimensions	17.26 x 1.72 x 20.48 in (4.37 x 44.09 x 52.02 cm)
Form Factor	1RU rack-mountable