Which way does the air flow on the QFX5120-48Y-AFI2?

The airflow of the QFX5120-48Y-AFI2 is back-to-front (AFI).

What ports does the QFX5120-48Y-AFI2 have?

The QFX5120-48Y-AFI2 has 48 × 25GbE, with uplinks of 8x 100GbE QSFP28 and 56 data ports in all.

What is the throughput of the QFX5120-48Y-AFI2?

The QFX5120-48Y-AFI2 has a throughput of 4 Tbps bidirectional (2 Tbps unidirectional), 2 Bpps forwarding.

How much power does the QFX5120-48Y-AFI2 draw?

The typical power draw of the QFX5120-48Y-AFI2 is 185 W (AC Average Power Consumption), and its maximum is 283 W (AC Max Power Consumption).

What are the size and weight of the QFX5120-48Y-AFI2?

The QFX5120-48Y-AFI2 measures 1.72 in / 4.3688 cm x 17.36 in / 44.0944 cm x 20.48 in / 52.0192 cm and weighs 23.7 lb / 10.75 kg (fully loaded).

QFX5120-48Y-AFI2 Juniper Switch, Back-to-Front Airflow, Used, 48x 25GbE SFP28 and 8x 100GbE QSFP28

Condition: Used, tested & guaranteed
WARRANTY & RETURNS: QFX5120-48Y-AFI2 has a 3-year warranty and a 30-day return policy. DOA units are replaced or refunded. Full terms are on the warranty page and the refund policy.
Availability: In stock

$9,895

A firm price comes back, typically the same business day. Prefer a PO or wire? We take those too. Just ask.

The Juniper QFX5120-48Y-AFI2 is a switch from the Juniper QFX5120 family with 48 ports of 25GbE SFP28, 8 ports of 100GbE QSFP28, back-to-front airflow and AC power. A separate 2x 1GbE RJ45 port is for management. It is a Layer 3 managed platform that runs Junos OS, with a 1U rack-mount form factor. This unit is used: inspected, powered on and functionally tested by Townsend Networks technicians before listing. One switch per order, with a rack-mount kit and the power cable(s) to match.

HOW IT DIFFERS: QFX5120-48Y-AFI2 is the QFX5120 with 48 25GbE/10GbE/1GbE SFP28 ports and 8 100GbE/40GbE QSFP28 ports, rated at 4 Tbps aggregate throughput. The AFI2 has back-to-front airflow: two 650 W AC power supplies with a Juniper Azure Blue ejector lever and five fan modules labeled AIR IN with a blue handle. Its sister QFX5120-48Y-AFO2 has the same ports and moves air front-to-back, with a Juniper Gold lever and AIR OUT fans.

Model: QFX5120-48Y-AFI2
Network Ports: 48 × 25GbE
Connectors: SFP28, QSFP28, RJ45
Type: Switch
Condition: Used, tested & guaranteed

Technical details

Brand	Juniper
Family	QFX5120
Uplinks	8x 100GbE QSFP28
Total ports	56
Fastest port	100GbE
Management ports	2 x RJ-45
Layer	Layer 3 (managed)
Operating system	Junos OS
Form factor	1U rack-mount
Rack units	1 U
Airflow	Back-to-front (AFI)
Power input	AC
Throughput	4 Tbps bidirectional (2 Tbps unidirectional), 2 Bpps forwarding
Dimensions	1.72 in / 4.3688 cm x 17.36 in / 44.0944 cm x 20.48 in / 52.0192 cm
Weight	23.7 lb / 10.75 kg (fully loaded)
Fans	Five fan modules with back-to-front airflow (label AIR IN)
Power supplies	Two 650-W AC power supplies with back-to-front airflow
Power draw (typical)	185 W (AC Average Power Consumption)
Power draw (maximum)	283 W (AC Max Power Consumption)
Operating temperature	32° through 104° F / 0° through 40° C
Storage temperature	-40° through 158° F / -40° through 70° C
Operating humidity	5% through 90% (noncondensing)
Operating altitude	6000 ft / 1828 m
CPU	2.2-GHz quad-core Intel CPU
Memory (DRAM)	16-GB memory
Flash storage	50-GB SSD storage
MAC addresses	288 (thousands) per system
IPv4 routes	Unicast prefixes RIB 2000, FIB 351; host 211 (thousands)
IPv6 routes	Unicast prefixes RIB 500, FIB 172; host 106 (thousands)
VLANs	4094 (VLAN IDs Count)
Jumbo frames	9216 bytes
Stacking	Virtual Chassis: up to two QFX5120-48Y
Console port	RJ-45 console port
USB port	USB port

Juniper datasheet

Testing process

What buyers ask

Can I get a price and the quantity available for the QFX5120-48Y-AFI2?: Yes. Use Request a quote on this page with the part number QFX5120-48Y-AFI2 and the quantity you need. A firm price and the quantity available come back, typically the same business day. Pages never print a unit count.
Does the QFX5120-48Y-AFI2 ship to my address?: Ground shipping within the US is free. Faster services, including overnight, are charged at the carrier's rate, shown at checkout before payment. Worldwide delivery is available on request, and international buyers cover import duties and taxes unless quoted otherwise.
What condition is the QFX5120-48Y-AFI2 in?: The QFX5120-48Y-AFI2 on this page is Used, Tested & Guaranteed.

Questions and answers

Which way does the air flow on the QFX5120-48Y-AFI2?: The airflow of the QFX5120-48Y-AFI2 is back-to-front (AFI).
What ports does the QFX5120-48Y-AFI2 have?: The QFX5120-48Y-AFI2 has 48 × 25GbE, with uplinks of 8x 100GbE QSFP28 and 56 data ports in all.
What is the throughput of the QFX5120-48Y-AFI2?: The QFX5120-48Y-AFI2 has a throughput of 4 Tbps bidirectional (2 Tbps unidirectional), 2 Bpps forwarding.
What power does the QFX5120-48Y-AFI2 use?: The QFX5120-48Y-AFI2 uses AC.
How much power does the QFX5120-48Y-AFI2 draw?: The typical power draw of the QFX5120-48Y-AFI2 is 185 W (AC Average Power Consumption), and its maximum is 283 W (AC Max Power Consumption).
What are the size and weight of the QFX5120-48Y-AFI2?: The QFX5120-48Y-AFI2 measures 1.72 in / 4.3688 cm x 17.36 in / 44.0944 cm x 20.48 in / 52.0192 cm and weighs 23.7 lb / 10.75 kg (fully loaded).

Juniper QFX5120-48Y-AFI2 / 48x25GbE SFP28 + 8x100GbE QSFP28 (2x RJ-45 mgmt), 1U, 4Tbps bidirectional switching, AFI2 = PSU-side intake / port-side exhaust airflow

WHAT'S INCLUDED

One (1) Juniper QFX5120-48Y-AFI2. Includes a rack-mount kit and the power cable(s) to match the switch.

CONDITION & TESTING

Condition: Used, Tested & Guaranteed QFX5120-48Y-AFI2 was tested by Townsend Networks technicians before listing. The test process is on /testing-process.