JJPlus ExpandarMax9 (NR25UA5)

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multiple revisions of this device, use caution
abgn (AN300)
2.4/5GHz High Power 11n USB Adapter
Generic USB Wifi adapter.jpg
Platform
BrandModelRev JJPlus ExpandarMax9
Interface USB 2.0
Connector Female Mini-B
Form factor corded (modular) adapter
FCCID none specified
Chip1 Ralink RT2770
Chip2 Ralink RT2750

OUI: 00:15:61 (-, 12 W)

Antenna Connection RP-SMA
MIMO status 1x2:2
Wireless Standards IEEE 802.11a/b/g/n
802.11n up to 150/150 Mbps
802.11g up to 54 Mbps
802.11b up to 11 Mbps
802.11a up to 54 Mbps
Operating Frequency 2.4 or 5 GHz
Other
Manuf/OEM/ODM JJPlus

Probable Linux driver
rt2800usb (in backports) or rt2870sta
(see also passys)

Windows driver
see MediaTek's website
older Ralink drivers have been removed.
see the Wayback Machine
for some older driver sets (filter by EXE/ZIP)

 Chip1 brandChip2 brand
JJPlus ExpandarMax9 (NR25UA5)RalinkRalink
JJPlus ExpandarPro2RealtekRealtek

For a list of all currently documented Ralink chipsets with specifications, see Ralink.

For a list of all currently documented JJPlus devices with specifications, see JJPlus.

150 Mbps - 1SS 5GHz 802.11n (40MHz chan.),
150 Mbps - 1SS 2.4GHz 802.11n (40MHz chan.) = AN300 class

Overview

While the JJPlus site quotes the alternative part number as NR25UA5, other sources (more specifically minipci.biz's eBay store) quote it as NR25UAJ.

Additional specifications

This information is per JJPlus's datasheet.

Typical Receiver Sensitivity w/ 11b rates (more)

  • -87 dBm @ 11M

Typical Receiver Sensitivity w/ 11a rates (more)

  • -74 dBm @ 54M (64-QAM)

Typical Receiver Sensitivity w/ 11g rates (more)

  • -74 dBm @ 54M (64-QAM)

Links of Interest

Datasheet