Extreme ExtremeSwitching X690 Switches - Refurbished, Used, New

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Extreme ExtremeSwitching X690 switches are 1RU, 48-port 10G switches with 40G and 100G uplinks, running ExtremeXOS. They are used as top-of-rack leaf switches for 10G servers, as 10G aggregation for campus closets, and as a compact distribution layer where 100G uplinks are needed. The two models on this page share the same uplinks and differ only in their 48 access ports: 10GBASE-T RJ45 on the X690-48t-2q-4c, SFP+ on the X690-48x-2q-4c. NetworkTigers sells X690 switches refurbished, used and new, and every unit is tested before it ships so it works when it arrives.

X690 models, airflow and power

Model or option	Used for	Shop
X690-48t-2q-4c (17360)	48x 10GBASE-T RJ45 ports for copper-attached servers and 10G access, 2x 40G QSFP+ and 4x 100G QSFP28 uplinks	X690-48t-2q-4c
X690-48x-2q-4c (17350)	48x 10G SFP+ ports for fiber or DAC-attached servers and uplinks, 2x 40G QSFP+ and 4x 100G QSFP28 uplinks	X690-48x-2q-4c
40G QSFP+ uplinks	Two QSFP+ ports on each model, for 40G uplinks or 4x 10G breakout	X690
100G QSFP28 uplinks	Four QSFP28 ports on each model, for 100G uplinks to a spine or core, or stacking between X690 switches	X690
Airflow	Front-to-back or back-to-front fan modules, chosen to match the hot and cold aisle in your rack	X690
Power	Two power supply bays, AC or DC, hot-swappable. Supplies and fans are sold separately so you can match the airflow and power you already run	X690
Related Extreme	Other Extreme 10G and 100G switches	X670-G2 \| X590 \| X870 \| Data center and core \| All Extreme

Which X690 do I need?

Start with the access ports. The X690-48t-2q-4c has 10GBASE-T RJ45 ports, which suit servers and appliances cabled with Cat6a copper and let you reuse existing structured cabling, at the cost of higher power per port. The X690-48x-2q-4c has SFP+ ports, which take 1G or 10G transceivers and DAC cables and suit fiber runs, mixed 1G and 10G devices, and lower per-port power. The uplinks are the same on both: two 40G QSFP+ and four 100G QSFP28. Then pick airflow to match the rack, front-to-back for a standard hot and cold aisle layout, and choose AC or DC power supplies. Each listing states whether fans and power supplies are installed, so check that before you order, and check the ExtremeXOS version against the features and the other Extreme switches in your network.

Frequently asked questions

Can X690 switches be stacked?
Yes. X690 switches stack with each other over their QSFP+ and QSFP28 ports using SummitStack-V, so a stack is managed as one switch with one configuration. Stacking uses uplink ports, so plan which ports you give to stacking and which to the core.

Can the 100G ports run at 40G?
Yes. The QSFP28 ports accept QSFP+ optics and cables and run at 40G, which is useful when the core has not yet moved to 100G. Breakout to lower speeds depends on the port and the ExtremeXOS version, so tell us how you plan to cable the switch and we will confirm.

Can an X690 replace an X670-G2?
In most 10G leaf and aggregation roles, yes. The X690 keeps 48 10G ports and adds 100G uplinks, so it is the usual step up when the X670-G2's 40G uplinks become the bottleneck.

NetworkTigers has sold enterprise network equipment since 1996. Every X690 switch carries the NetworkTigers 365-day warranty. Need a pair or a stack? Ask us for a quote.