JJPlus ExpandarMax9 (NR25UA5)
JJPlus ExpandarMax9
Interface: USB
USB 2.0
Connector: Female Mini-B
Form factor tags: corded (modular) adapter
FCC ID: none available
WI1 chip1: Ralink RT2770
WI1 chip2: Ralink RT2750
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)
Antenna connector: RP-SMA
abgn, 1x2:2
For a list of all currently documented Ralink chipsets with specifications, see Ralink.
2.4/5GHz High Power 11n USB Adapter
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)
