Reyee 2.5G PoE Switches: The UK Installer's Multi-Gigabit Guide

Wi-Fi 7 has quietly broken the gigabit port. A modern access point can move more data over the air than a 1 GbE cable can carry back to the comms cabinet, and a recorder fed by thirty 4K cameras is not far behind. This guide explains how to choose a 2.5G PoE switch for UK installs: what multi-gigabit actually is, when CCTV genuinely needs it, which Ruijie Reyee models to specify, whether the existing Cat5e will cope, and how to size the PoE budget so the access points do not brown out at 4 pm on a Friday.

What this guide covers

What a 2.5G (multi-gigabit) PoE switch is, and the IEEE 802.3bz standard behind it
Whether IP cameras need 2.5G ports — and where the real bottleneck sits on a CCTV network
Why Wi-Fi 7 access points such as the RG-RAP72Pro are the main reason to go multi-gig
The five Reyee 2.5G switches we stock, compared side by side
Cat5e, Cat6 and alien crosstalk: will the existing cabling carry 2.5G?
PoE budget maths for Wi-Fi 7, 10G SFP+ uplinks, and three reference builds with exact part numbers

Reyee 2.5G PoE switch feeding Wi-Fi 7 access points over a 10G uplink — A 2.5G PoE switch removes the gigabit ceiling between Wi-Fi 7 access points and the core.

What is a 2.5G PoE switch?

A 2.5G PoE switch is a network switch whose copper ports run at up to 2.5 Gbps instead of 1 Gbps, while still delivering Power over Ethernet to the devices plugged into them. The ports auto-negotiate down to 1 Gbps, 100 Mbps and 10 Mbps, so an older camera or printer still works on the same port.

The standard behind it is IEEE 802.3bz, ratified in 2016 and often marketed as NBASE-T or “multi-gig”. According to Fluke Networks' summary of the standard, 802.3bz carries 2.5 Gbps over 100 m of Category 5e and 5 Gbps over 100 m of Category 6. It was designed precisely so that faster access points could run over cabling that is already in the walls — which is exactly the situation most UK installers walk into.

On the Reyee range, “MG” in the part number means multi-gigabit: the RG-ES206MG-P, RG-ES209MG-P, RG-NBS3300 and RG-NBS5300 families all carry 2.5G access ports and 10G SFP+ uplinks.

Do CCTV cameras need 2.5G ports?

No — an individual IP camera does not need a 2.5G port, because even a 4K H.265 stream is a small fraction of 1 Gbps. The places where CCTV runs out of bandwidth are the switch uplink, the recorder connection and any wireless backhaul, not the camera edge port.

A typical camera stream is measured in single-digit megabits per second; our CCTV storage guide walks through real bitrates by resolution and codec. Multiply that by 32 or 64 cameras, add sub-streams, playback and remote viewing, and a single 1 GbE uplink from an edge switch to the core starts to look thin. That is why the more useful question for a CCTV designer is “how fast is my uplink?” rather than “how fast is each camera port?”.

The honest rule we give installers: camera-only jobs rarely need multi-gig access ports, but they benefit from a 10G uplink on the aggregation switch. Mixed sites that carry Wi-Fi 6/7 access points alongside cameras are where a 2.5G PoE switch earns its money.

Why do Wi-Fi 7 access points need multi-gigabit ports?

Wi-Fi 7 access points can deliver more aggregate throughput than a single 1 GbE link can carry, so on a gigabit port the cable, not the radio, becomes the limit. A multi-gig port lets the access point pass its full wireless capacity back to the network.

Take the ceiling-mount Reyee RG-RAP72Pro. Ruijie's RG-RAP72Pro specification page lists a maximum combined data rate of 5,011 Mbps — 4,323 Mbps on 5 GHz and 688 Mbps on 2.4 GHz — from an access point with a 2.5G Ethernet port and a maximum power consumption of 30 W. Real-world client throughput is always lower than the headline PHY rate, but a busy office or classroom can comfortably exceed 1 Gbps of backhaul during peak use.

The same logic applies across the Reyee Wi-Fi range we stock with 2.5G uplinks: the RG-RAP72 Wi-Fi 7 ceiling AP, the tri-band RG-RAP73PRO, the outdoor RG-RAP72PRO-OD, the Wi-Fi 6 RG-RAP2260(E) and outdoor RG-RAP6260(H), and the RG-AP180P-L wall-plate AP. For the full wireless picture, see our Reyee Wi-Fi 7 access point guide.

The Reyee 2.5G PoE switch range at a glance

Reyee's multi-gig line-up splits into two cloud-managed smart switches for small sites and three managed models for larger networks. All five have 2.5G PoE access ports and 10G SFP+ uplinks.

Model	2.5G ports	10G SFP+	PoE budget	Switching capacity	Tier
RG-ES206MG-P	5 (4 PoE+)	1	70 W	45 Gbps	Smart cloud
RG-ES209MG-P	8 (8 PoE+)	1	130 W	60 Gbps	Smart cloud
RG-NBS3300-8MG2XS-P	8 (8 PoE+)	2	240 W	80 Gbps	L2 managed
RG-NBS3300-16MG4XS-HP	16 (12 PoE+, 4 PoE++)	4	370 W	160 Gbps	L2 managed
RG-NBS5300-8MG2XS-UP	8 (8 PoE++)	2	370 W	80 Gbps	L3 managed

Sources: Ruijie Reyee product pages for the RG-ES206MG-P, RG-ES209MG-P, RG-NBS3300-8MG2XS-P, RG-NBS3300-16MG4XS-HP and RG-NBS5300-8MG2XS-UP.

Three tiers of Reyee 2.5G PoE switch: smart cloud, L2 managed and L3 managed — Smart cloud, L2 managed or L3 managed: pick the multi-gig tier by AP count and routing needs.

RG-ES206MG-P and RG-ES209MG-P: multi-gig for small sites

The RG-ES206MG-P and RG-ES209MG-P are the entry point to 2.5G PoE on Reyee: compact, cloud-managed desktop switches for a small office, shop or home with two to eight Wi-Fi 6/7 access points.

The RG-ES206MG-P has five 2.5G ports, four of them PoE+ with a 70 W budget, plus one 10G SFP+ uplink. The RG-ES209MG-P doubles up to eight 2.5G PoE+ ports on a 130 W budget, again with a single 10G SFP+ uplink. Ruijie's RG-ES209MG-P page lists 802.3af/at PoE, link aggregation of up to four ports, PoE watchdog, port isolation and an operating range of 0 °C to 40 °C — so keep it indoors, in a ventilated cabinet, not in a loft.

PoE watchdog is the feature CCTV installers will value most: the switch notices when a powered device stops responding and power-cycles the port, so a hung camera or access point recovers without a site visit. Both models are managed free through Ruijie Cloud; our Reyee Cloud remote multi-site guide covers the set-up.

RG-NBS3300: L2 managed multi-gig for busier networks

The RG-NBS3300 series is the managed multi-gig switch for sites with more access points, more cameras or a customer IT policy that needs VLANs, ACLs and proper monitoring.

The RG-NBS3300-8MG2XS-P pairs eight 2.5G PoE+ ports with two 10G SFP+ uplinks and a 240 W PoE budget, per Ruijie's RG-NBS3300-8MG2XS-P product page. Two uplinks matter: one can run to the core and the other to a second edge switch or the recorder, both at 10G.

The rack-mount RG-NBS3300-16MG4XS-HP is the bigger brother: sixteen 2.5G ports (twelve PoE+ and four PoE++), four 10G SFP+ uplinks, a 370 W budget and 160 Gbps of switching capacity according to the RG-NBS3300-16MG4XS-HP specification. The PoE++ ports are the ones to reserve for high-draw devices — tri-band access points, PTZ cameras with heaters, or anything else that needs more than 30 W.

If you are putting CCTV on its own network segment on these switches, the principles are the same as on the gigabit RG-NBS range — see our Reyee managed switches for CCTV guide.

RG-NBS5300-8MG2XS-UP: Layer 3 and PoE++ on every port

The RG-NBS5300-8MG2XS-UP is the switch to specify when every port may need high-power PoE and the switch itself should route between VLANs.

The RG-NBS5300-8MG2XS-UP offers eight 2.5G ports, all 802.3bt PoE++, with two 10G SFP+ uplinks and a 370 W total budget, as listed on Ruijie's RG-NBS5300 product page. Because it is a Layer 3 switch, inter-VLAN routing between the CCTV, Wi-Fi and data networks can happen in the switch rather than hair-pinning through the gateway. It suits plant rooms feeding outdoor access points, PTZ cameras and wireless bridges from one box.

Remember that 370 W shared across eight PoE++ ports is not 90 W on every port at once. Plan the budget, not the per-port maximum.

Will the existing Cat5e carry 2.5G?

Usually yes — 802.3bz was written for 100 m of Cat5e at 2.5 Gbps — but long, tightly bundled runs are the risk, and testing is the only way to be certain.

The limiting factor is alien crosstalk: interference between neighbouring cables in the same bundle. Fluke Networks explains in its 2.5/5GBASE-T cabling article that older Cat5e and Cat6 specifications never defined alien crosstalk, that longer and tighter bundles carry more risk, and that the practical fixes are unbundling patch leads, swapping patch cords for Cat6A or shielded parts, keeping multi-gig runs shorter (under about 50 m) or spreading them across non-adjacent patch-panel ports.

On new runs, use solid-copper Cat6 and avoid copper-clad aluminium (CCA) entirely — CCA has higher resistance, which hurts PoE as well as data. We stock Securiflex Cat6 solid copper PVC for internal runs and Securiflex Cat6 PE external-grade for outdoor access points and cameras.

A useful field check: if a Reyee 2.5G port shows a link at 1000 Mbps in Ruijie Cloud when the access point supports 2.5G, the cable or a patch lead is the first suspect.

How do I size the PoE budget for Wi-Fi 7?

Add up the worst-case draw of every powered device, then keep at least 20% of the switch's PoE budget spare. Wi-Fi 7 access points draw noticeably more than the Wi-Fi 5 units many installers are used to.

Using the 30 W maximum that Ruijie publishes for the RG-RAP72Pro as a worked example:

Switch	PoE budget	With 20% headroom	RG-RAP72Pro at 30 W max
RG-ES206MG-P	70 W	56 W	1 comfortably, 2 at the limit
RG-ES209MG-P	130 W	104 W	3, with room for cameras
RG-NBS3300-8MG2XS-P	240 W	192 W	6
RG-NBS3300-16MG4XS-HP	370 W	296 W	9
RG-NBS5300-8MG2XS-UP	370 W	296 W	8 (all ports)

Access points rarely sit at maximum draw all day, but they do at switch-on and under heavy load, and that is exactly when an over-subscribed switch starts dropping ports. For a single access point where the switch has no spare budget, the RG-POE-50-60W-MG 2.5G PoE injector is a tidy fix. For gigabit PoE sizing in general, our Reyee PoE switch sizing guide has the full method.

10G SFP+ uplinks: which module should I use?

Every Reyee 2.5G PoE switch has at least one 10G SFP+ uplink, and using it is what stops eight multi-gig ports from choking on a single gigabit link to the core.

For runs inside the building, a multimode RG-XG-SFP-SR-MM850 transceiver covers up to 300 m on OM3-class fibre. Between buildings, the singlemode RG-XG-SFP-LR-SM1310 reaches 10 km. Where the edge switch sits in the same rack as the core, a 1 m RG-XG-SFP-AOC1M active optical cable is the cheapest, simplest link.

At the core, the RG-NBS5500-12XS gives twelve 10G SFP+ ports to aggregate several multi-gig edge switches, and the RG-EG406XS gateway has multi-gig ports so the router is not the new bottleneck.

When is a gigabit PoE switch still the right choice?

A gigabit PoE switch is still the right choice for camera-only CCTV networks and sites with Wi-Fi 5 or entry Wi-Fi 6 access points, because none of those devices can use more than 1 Gbps per port.

For a 24-camera system, the RG-NBS3200-24GT4XS-P is a better buy than any multi-gig switch: 24 gigabit PoE+ ports, a 370 W budget, and four 10G SFP+ uplinks so the aggregate camera traffic still reaches the recorder at 10G. That is the pattern we recommend on most mixed sites — gigabit PoE for cameras, 2.5G PoE for access points, both uplinked at 10G. The Reyee networking for CCTV buyer's guide shows where every Reyee switch family fits.

Six-step workflow for specifying a 2.5G PoE switch on a UK install — Six steps from site survey to a multi-gig network adopted into Ruijie Cloud.

Three reference builds with part numbers

These three builds cover most of the multi-gig enquiries we see from UK installers, from a small office to a campus plant room.

Site	Access points	Multi-gig switch	Cameras and uplink
Small office or shop	2–3 × RG-RAP72	RG-ES209MG-P	Up to 4 cameras on spare ports; 10G SFP+ to an RG-EG406XS gateway
School block or mid-size office	6–9 × RG-RAP72Pro, 1 × RG-RAP73PRO	RG-NBS3300-16MG4XS-HP	24 cameras on RG-NBS3200-24GT4XS-P; both switches linked with RG-XG-SFP-AOC1M
Campus or yard plant room	RG-RAP72PRO-OD and RG-RAP6260(H) outdoors	RG-NBS5300-8MG2XS-UP	PTZs on PoE++; RG-XG-SFP-LR-SM1310 back to an RG-NBS5500-12XS core

Six steps to specify a 2.5G PoE switch

Follow this order on every multi-gig job and the switch, the cabling and the power budget will line up first time.

Survey the devices. List every access point, camera and bridge, with its link speed and maximum PoE draw.
Check the cabling. Test existing Cat5e/Cat6 for 2.5G, or run new solid-copper Cat6.
Pick the tier. Smart cloud for up to eight APs, L2 managed for VLAN-heavy sites, L3 when the switch should route.
Sum the PoE budget. Worst-case watts plus 20% headroom.
Plan the 10G uplink. Choose SR, LR or AOC to match the distance.
Adopt to Ruijie Cloud. Confirm every AP negotiates at 2.5G, then enable PoE watchdog.

Frequently asked questions

Is a 2.5G PoE switch worth it for a CCTV-only system?

Rarely. Individual IP cameras do not need more than 1 Gbps. Spend the money on a gigabit PoE switch with a 10G SFP+ uplink, such as the RG-NBS3200-24GT4XS-P, so the aggregate traffic reaches the recorder without a bottleneck.

Will my existing gigabit devices work on a 2.5G port?

Yes. Multi-gig ports auto-negotiate down to 1 Gbps, 100 Mbps and 10 Mbps, so cameras, printers and older access points connect normally.

Do I need Cat6A for 2.5G?

No. IEEE 802.3bz supports 2.5 Gbps over 100 m of Cat5e. Cat6A patch leads can help on long, tightly bundled runs where alien crosstalk causes problems.

What is the difference between the RG-ES209MG-P and the RG-NBS3300-8MG2XS-P?

Both have eight 2.5G PoE+ ports. The RG-ES209MG-P is a smart cloud switch with a 130 W budget and one 10G uplink; the RG-NBS3300-8MG2XS-P is L2 managed with a 240 W budget and two 10G uplinks.

Why does my Wi-Fi 7 access point only show a 1000 Mbps link?

Either the switch port is gigabit-only or the cable or patch lead cannot hold 2.5G. Move the AP to a multi-gig port, re-terminate or replace the patch lead, and re-test.

Can the Reyee 2.5G switches be managed remotely?

Yes. All five models covered here are managed through Ruijie Cloud and the Reyee app, with no licence fees.

Order Reyee 2.5G PoE switches from Netview

Netview is a Ruijie Reyee authorised UK wholesaler based in Leicester, holding the RG-ES multi-gig, RG-NBS3300 and RG-NBS5300 switches, Wi-Fi 7 access points and 10G SFP+ modules in stock for fast dispatch. Browse the full Reyee networking range or see all the brands we stock at netviewcctv.co.uk.