Your whole workspace
UEEVII CPE688 vs CPE450: which bridge fits a detached office?
A detached office needs more than a bigger distance claim. The CPE688 is the faster dual-gigabit option for a demanding link; the CPE450 is the lower-cost 100Mbps option when the internet plan and devices at the far end do not need more.
Choose CPE688 for gigabit ports and more throughput headroom; choose CPE450 for a simpler 100Mbps outbuilding link.
Garages, studios, barns, workshops, and detached home offices with a clear line of sight.
Published 3–5km figures are clear-line-of-sight ceilings, not promises through trees, walls, roofs, or interference.
Our take is based on published specifications and linked sources. We have not hands-on tested these products. Some links may earn a commission.
Buy the port speed you can actually use.
CPE688 is the safer fit for a serious detached workspace because its bridge units have Gigabit Ethernet ports. CPE450 is the value pick when a 100Mbps wired ceiling is acceptable. Neither model’s kilometer figure matters until the two mounting points can see each other clearly.
Check before checkout
Exact bundle contents, price, PoE injector, mounting hardware, router inclusion, and stock can change by variant. Match the ASIN, not just the model name.
Side-by-side
The meaningful difference is throughput, not distance.
| Decision point | CPE688 | CPE450 |
|---|---|---|
| Best fit | Best for a faster detached-office link | Best value for an ordinary outbuilding connection |
| Ethernet ports | Two Gigabit RJ45 ports per bridge | Two 10/100Mbps RJ45 ports per bridge |
| Published link / network claim | Up to 1,300Mbps bridge transfer; up to 750Mbps network speed listed | Up to 300Mbps wireless transfer; wired output is capped at 100Mbps |
| Published maximum distance | Up to 5km / 3.1 miles, clear line of sight | Up to 3km / 1.8 miles, clear line of sight |
| Radio / antenna | 5.8GHz · IEEE 802.11ac · 14dBi dual-polarization directional antenna | 5.8GHz · IEEE 802.11ac/n/a · 14dBi directional antenna |
| Power notes | Official feature copy lists 24V–48V PoE; confirm the included injector and selected kit | 24V PoE adapters are listed in the package; the page also states 24V–48V support |
| Price observed | $237.49 Amazon listing snapshot | $102.87 Amazon listing snapshot |
| Exact approved ASIN | B0DGT3WTTM | B083QCRS2V |
Price snapshots came from the exact PartnerBoost/Amazon listings on September 9, 2026; they are not price guarantees. Distance and throughput are manufacturer ceilings under stated conditions, not WorkChoose measurements.
Photo: manufacturerPerformance pick · ASIN B0DGT3WTTM
UEEVII CPE688 complete kit
$237.49 Amazon listing snapshot
Photo: manufacturerValue pick · ASIN B083QCRS2V
UEEVII CPE450 two-pack
$102.87 Amazon listing snapshot
Installation gate
Four checks decide whether either bridge works well.
Line of sight
Stand at both intended mounting points. Trees, walls, roofs, metal siding, terrain, and future foliage belong in the decision.
Required real speed
Compare the remote office’s internet plan and simultaneous devices with CPE450’s 100Mbps port ceiling.
Far-end network
Plan the Ethernet cable, indoor access point or router, switch ports, and coverage inside the detached building.
Power and weather
Use the exact manual for PoE voltage, pinout, grounding, cable rating, drip loops, mounting, and operating limits.
UEEVII CPE688 vs CPE450 FAQ
Is the CPE688 worth the extra cost over the CPE450?
It is worth considering when the remote building needs more than a 100Mbps wired ceiling. CPE688 publishes Gigabit ports and more throughput headroom. If the internet plan and every far-end task stay well below 100Mbps, CPE450 is the more economical starting point.
Will either bridge send Wi-Fi through trees or walls?
The published distance figures assume a clear, face-to-face line of sight. Trees, walls, metal siding, roofs, terrain, misalignment, weather, and nearby 5GHz interference can reduce reliability and speed. These are directional point-to-point bridges, not ordinary whole-home mesh nodes.
Does the remote CPE unit create Wi-Fi inside the office?
Plan on connecting the remote bridge to an access point or router unless the exact bundle explicitly includes one. The CPE688 approved Amazon listing was shown as a complete kit with an AX3000 router; bundle contents can change, so verify the selected variant at checkout.
Can I power either model from my existing PoE switch?
Do not assume compatibility from the word PoE alone. UEEVII publishes voltage information and includes injectors with some kits, but switch standards, pinout, voltage, cable run, and package contents must match the exact manual and selected variant.
Are the purchase buttons affiliate links?
Yes. The eligible CPE688 and CPE450 purchase buttons use approved PartnerBoost links to the exact Amazon ASINs. WorkChoose may earn a commission at no added cost to the buyer. Official specifications and manual links remain direct.
Sources & next steps
Sources checked September 9, 2026. WorkChoose did not install, range-test, speed-test, weather-test, or electrically validate either bridge. Affiliate purchase links are labeled and official evidence links are direct.
