National Datacomm NWH640

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b (B11)
InstantWave High Speed USB Adapter
Generic USB Wifi adapter.jpg
Platform
BrandModelRev National Datacomm NWH640
Interface USB
Connector USB
FCCID IOU0640S01
Chipset Intersil PRISM 2.5
Chip1 Intersil Model?
Chip2 Intersil ISL3685

OUI: none specified

Wireless Standards IEEE 802.11b
802.11b up to 11 Mbps
Operating Frequency 2.4 GHz

Probable Linux driver
prism2_usb
(see also passys)

Windows driver
see Intersil/prism2/usb/windows

Retail
FCC approval date 12 September 2001
Country of manuf Taiwan

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

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

11 Mbps - 2.4GHz 802.11b = B11 class

Overview

"ISL37300XU" and "REV. A" is silkscreened on the board in the FCC photos.

This device is likely based on the Intersil ISL37300XU reference design.

Per the FCC test report, this device has an alternate model of NCP140.