Ubiquiti USW-Pro-XG-10-PoE: One U of 10GbE That Carries Your Whole Rack

The USW-Pro-XG-10-PoE is a 1U switch that does two jobs at once: it's your copper 10GbE backbone and the PoE power plant for everything on it. Ten 10GBASE-T ports, all of them PoE+++ (802.3bt Type 4) — up to 90 W per port, 400 W total budget — plus two 10G SFP+ uplinks, L3 VLAN routing built in, and a DC backup-power input that plugs into UniFi UPS gear. It's shipping now at $699 from the Ubiquiti store ($754 at B&H with surcharges included), and it's the rackmount answer to the $499 desktop USW-Pro-XG-8-PoE.

The specifics//

Price	$699 (Ubiquiti store, verified 2026-09-09) / $754 street at B&H
Form factor	1U rackmount; rack ears in the box, plus rubber feet if you want it on a desk
Ports	10× 10GBASE-T (all PoE+++), 2× 10G SFP+ — that's twelve ports, not ten
PoE budget	400 W; up to 90 W per copper port
Switching capacity	240 Gb/s (120 Gb/s non-blocking), 179 Mpps forwarding rate
Layers	L2 + L3: inter-VLAN routing, static routes, DHCP server/relay, MAC/IP ACLs, port isolation
Power input	AC plus a second DC input (USP-Connect) for UniFi UPS / power solutions
Management	UniFi Network app; 1.3" front touchscreen with AR switch management

It's closed: you manage it from the UniFi controller, not an open CLI — the standard trade for the L3 feature set, and the same deal as everything else in the Pro line. If that doesn't bother you (or if you already run UniFi), this is the "one box, whole rack" purchase.

What's actually inside (and why $699 works)//

ServeTheHome tore it down and the interesting part is what they found on the board: a Realtek RTL9313 switch chip. Same silicon as the $499 XG-8-PoE — and, STH notes, the same chip in low-cost 12-port 10GbE switches like the ~$205 Sodola SL-SWTGW2C48NS. Usually that's a step down from the Marvell Prestera chips Cisco-class vendors use in this segment. The PHYs are Realtek too: RTL8264B pairs plus two RTL8261BE for the final ports — which is also why 10GBASE-T switches cost more and run hotter than their fiber equivalents, since every copper port needs a dedicated PHY doing DSP work.

So the silicon is commodity. What you're actually paying $699 for:

• The PoE budget. The internal PSU is bigger than what STH sees in typical 12-port 10GbE switches because it's feeding up to 400 W of PoE+++ on top of the PHYs, with a "PoE hat" of Realtek ICs sitting above the ports.
• The integration. UniFi controller management, Etherlighting (ports glow by link speed / native VLAN — genuinely useful in a dark rack), and that front touchscreen for at-a-glance status. STH found a GigaDevice GD32F470 Arm MCU running the display.
• Redundant-ish power options. The second DC input pairs with UniFi's USP-Connect UPS gear, so your whole switching layer can ride out an AC outage.

And it performs like the spec sheet says: STH drove it with a Keysight XGS2 and IxNetwork 26 (RFC2544) and hit 100% of line rate — 120 Gbps L1 across all twelve ports — with zero frame loss at 64B, 1518B, and the IMIX / Cisco-IMIX / IPSec profiles. Latency and jitter tracked the XG-8-PoE. PoE+++ was verified on both a Fluke LinkIQ-Duo and a MicroScanner PoE probe. Power: 21.6 W at idle, ~23 W with a 10G copper link up — four fans keep it cool, and owners in the review thread report it quiet when idle and unnoticeable under partial PoE load.

The honest take//

STH's verdict is fair, and I'll repeat it: $699 for "a 12-port Realtek-based switch" would not be great value — that chip lives in $200–300 web-managed boxes. The value comes from the UniFi touches and the PoE+++ budget; "$699 for a 400W PoE+++" is where the math clicks.

Who should not buy it:

• You only need one or two low-power PoE devices. The $499 desktop USW-Pro-XG-8-PoE does that job and leaves $200 in your pocket. STH says the same — the $200 premium is steep unless you're going to actually use the power budget.
• You want an open CLI or non-UniFi management. This box lives in the UniFi app, full stop. If that's a dealbreaker, our QNAP QSW-M2130 coverage is the other end of the "how to buy a multigig backbone" spectrum — and if you're shopping for raw speed-per-dollar in rack gear, the MikroTik CRS804 is what happens when you stop paying for brand.
• You care about export-restriction optics. B&H's listing notes sales to China, Hong Kong, Russia, and Venezuela are prohibited — a footnote that matters less in most homelabs but exists if you're watching the Ubiquiti-in-Russia stories.

If your rack is full of 10G NICs, PoE cameras, WiFi 7 APs, and edge boxes, and you'd rather buy one box than two (a backbone switch plus a PoE switch), this is the single-box answer — at a price that's $200 over its sibling but doing roughly twice the power job.