Juniper QFX5210 Switches - Refurbished, Used, New

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Juniper QFX5210 switches are high-density 100G data center switches running Junos, built for spine and leaf roles in IP fabrics and EVPN-VXLAN overlays. The QFX5210-64C packs 64 QSFP28 ports into a 2U chassis; each port runs at 100G or 40G, and supported ports break out to 4x 25G or 4x 10G, so one switch can serve as a spine, a high-density 25G leaf, or both. NetworkTigers sells QFX5210-64C switches in AC and DC, front-to-back and back-to-front airflow, along with matching JPSU power supplies, refurbished, used and new. Every unit is tested before it ships so it works when it arrives.

QFX5210 models and parts

Model or part	Airflow and power	Shop
QFX5210-64C-AFO	64x 100G QSFP28, AC power, front-to-back airflow (ports to fans)	QFX5210-64C-AFO
QFX5210-64C-AFO2	64x 100G QSFP28, AC power, front-to-back airflow, listed as the Flex variant	QFX5210-64C-AFO2
QFX5210-64C-AFI	64x 100G QSFP28, AC power, back-to-front airflow (fans to ports)	QFX5210-64C-AFI
QFX5210-64C-DC-AFO	64x 100G QSFP28, DC power, front-to-back airflow	QFX5210-64C-DC-AFO
QFX5210-64C-DC-AFI	64x 100G QSFP28, DC power, back-to-front airflow	QFX5210-64C-DC-AFI
JPSU-1100W-AC-AFO	1100W AC power supply, front-to-back airflow, for AFO switches	JPSU-1100W-AC-AFO
JPSU-1100W-AC-AFI	1100W AC power supply, back-to-front airflow, for AFI switches	JPSU-1100W-AC-AFI
Related Juniper	Other QFX data center switches	QFX5200 \| QFX5120 \| QFX10000 \| All QFX \| All Juniper

Which QFX5210 do I need?

Every QFX5210-64C has the same 64 QSFP28 ports, so the choice comes down to airflow and power. AFO (airflow out) pulls cool air in at the port side and exhausts at the fan and power supply side; AFI (airflow in) is the reverse. Match the suffix to your hot aisle and cold aisle layout, because the fans and power supplies are built for one direction and cannot be flipped. Choose AC or DC to match the feed in your rack. Power supplies and fans carry the same AFO or AFI suffix as the chassis, so a spare JPSU-1100W-AC-AFO belongs in an AFO switch only. Plan your breakouts before you order optics: a port split to 4x 25G or 4x 10G needs a breakout cable or a QSFP28 to 4x SFP28 optic, and a few neighboring ports may be reserved when breakouts are in use. Check which power supplies are installed and whether rack rails are included.

Frequently asked questions

Can the QFX5210 be a leaf for 10G servers?
Yes, through breakout. Splitting QSFP28 ports to 4x 10G gives a high count of 10G server ports, though for a mostly 10G or 25G leaf a QFX5120 or QFX5200 with native SFP28 ports is often the better fit and leaves the QFX5210 for the spine.

Does the QFX5210 support Virtual Chassis?
No. The QFX5210 is deployed as a standalone switch in an IP fabric, typically with EVPN-VXLAN or a routed leaf-spine design, rather than in a Virtual Chassis stack.

Which Junos release does a refurbished QFX5210 ship with?
The release that was on the switch when we tested it. If you need a particular Junos version for your fabric, tell us when you order and we will confirm what is installed.

NetworkTigers has sold enterprise network equipment since 1996. Every switch and power supply carries the NetworkTigers 365-day warranty. Need a quantity? Ask us for a quote.