对于大房子或办公室，哪款无线中继器最好？

Product ⇅ Price ⇅ 频段 (NA) ⇅ 最大传输功率 (dBm) ⇅ 天线数量 (NA) ⇅ 最大支持速度 (Mbps) ⇅ 覆盖范围 (sq ft) ⇅ 端口数量 (NA) ⇅
Netgear Nighthawk EAX80 (WiFi 6 Mesh Range Extender)
US 		£186.68 ≈ 双频 2.4GHz 和 5GHz — 2 内置天线 最高 6000 Mbps 最高覆盖 2,500 平方英尺 四个千兆以太网端口和一个 USB 3.0 端口

AX6000 dual-band WiFi 6 mesh extender that adds up to 6Gbps combined speeds, smart roaming, and multiple wired ports for devices. Suited for users with high-end routers who need to extend high-speed WiFi across medium-to-large homes.

Sources:
Office Depot Best Buy (product page) NETGEAR (product page)
搜索购买:
亚马逊 沃尔玛 易贝 速卖通 京东 淘宝
Netgear EAX20 (AX1800)
US 		£112.01 ≈ 2.4 GHz，5 GHz — 2 1.76 Gbit/s 适用于最多 4 间卧室的小到中等住宅 4

AX1800 dual-band Wi-Fi 6 mesh range extender with 4-stream design for improved capacity and gigabit Ethernet ports. Suited for small-to-medium homes or device-dense environments that need seamless mesh coverage and faster Wi‑Fi 6 performance.

Sources:
Provantage Crutchfield Best Buy
搜索购买:
亚马逊 沃尔玛 易贝 速卖通 京东 淘宝
Netgear Nighthawk EXS18 (BE3600)
US 		£96.33 ≈ 2.4 GHz，5 GHz — — 3600 Mbps 2000 平方英尺 1

Dual-band Wi‑Fi 7 range extender offering up to 3600 Mbps combined speeds, a single Gigabit Ethernet port, and coverage suitable for about 2000 sq ft. Suited for users who want a compact Wi‑Fi 7 extender to boost home coverage and plug into a wired device via Ethernet.

Sources:
Best Buy Consumer Reports (shop listings)
搜索购买:
亚马逊 沃尔玛 易贝 速卖通 京东 淘宝
TP-Link RE650 (AC2600)
US 		£52.27 ≈ 2.4GHz 和 5GHz <20dBm（2.4GHz）；<23dBm（5GHz） 4 最高 800Mbps（2.4GHz）+ 1733Mbps（5GHz） 14000 平方英尺 1 个千兆以太网端口