In this review we shall consider a set of wireless adapters with support of technology of accelerated data transmission MAXg:, and. Wireless PCI-adapter U.S.Robotics USR54 the Complete set of the adapter: the adapter the omnidirectional aerial dBi a disk with drivers and utilities a brief management on installation All electronics on the adapter spryatana under the screen, established on the adapter. The specification: the Interface: PCI 2.2 Supported speeds: 1, 2, 5.5, 11, 22, 6, 9, 12, 18, 24, 36, 48, 54, 1 (MAXg) Mbit/s Safety: 64/1 bats WEP-shifrovanie, support WPA (EAP-TLS, EAP-TTLS, EAP-PEAP) and WPA-PSK-shifrovaniya with use of algorithm AES and TKIP, and also 802.1x, 802.11i (WPA2 The device supports a mode of accelerated data transmission MAXg which besides other allows to raise radius of wireless communication. A configuration: Adjustment of the device can be lead by means of Windows Zero Config or through the utility of adjustment U.S.Robotics: By default, the utility does not allow to be connected to unsafe wireless networks. Adjustment of the device does not allow to choose speed of connection. In AdHoc a mode (tochka-tochka, without a point of access) the device can establish connection for the speed high end notebook reviews Mbit/s (some devices in mode AdHoc can establish connections only for the speed Mbit/s), and use of modes of the accelerated data transmission (such as MAXg) is impossible. Therefore consideration of modes of the accelerated data transmission will be lead in the separate review, at testing considered adapters in pair with a point of access. Wireless Cardbus-adapter U.S.Robotics USR5411: the Complete set of the adapter: The adapter a disk with drivers and utilities a brief management on installation On the adapter following indicators (from top to down) are located: the Indicator of activity of wireless connection the Indicator of a feed the Specification of the adapter: the Interface: Cardbus Supported speeds: 1, 2, 5.5, 11, 22, 6, 9, 12, 18, 24, 36, 48, 54, 1 (MAXg) Mbit/s Safety: 64/1 bats WEP-shifrovanie, support WPA (EAP-TLS, EAP-TTLS, EAP-PEAP) and WPA-PSK-shifrovaniya with use of algorithm AES and TKIP, and also 802.1x, 802.11i (WPA2) Quantity of channels: Average target capacity: 19. dBm the Configuration of the adapter is carried out by means of program Windows Zero Config or by means high end notebook reviews of utility U.S.Robotics which is completely similar considered above by consideration PCI-adaptera. Wireless USB-adapter U.S.Robotics USR5421: the Complete set of the adapter: The adapter a disk with drivers and utilities a brief management on installation On the adapter following indicators (from left to right) are located: the indicator of a feed the indicator of activity of wireless connection the Specification of the adapter: the Interface: USB 2. Supported speeds: 1, 2, 5.5, 11, 22, 6, 9, 12, 18, 24, 36, 48, 54, 1 (MAXg) Mbit/s Safety: 64/1 bats WEP-shifrovanie, support WPA (EAP-TLS, EAP-TTLS, EAP-PEAP) and WPA-PSK-shifrovaniya with use of algorithm AES and TKIP, and also 802.1x, 802.11i (WPA2) Quantity of channels: Average target capacity: 18. dBm Wireless USB-adapter it is connected to a computer by means of the connection, allowing to rotate it in different planes It allows to focus better the aerial of the device and to choose high end notebook reviews its more convenient arrangement. Adjustment of the device, as well as in the previous cases, is carried out or by means of Windows Zero Config, or by means of the utility of adjustment U.S.Robotics which, as well as in case of with Cardbus-adapterom, is completely similar considered above at adjustment PCI-adaptera. Testing of productivity: Testing of a wireless segment: following tests Have been lead: Test PCI-adapter USR54 - Cardbus-adapter USR54 Test Cardbus-adapter USR54 - USB-adapter USR54 Test USB-adapter USR54 - PCI-adapter USR54 Test PCI-adapter USR54 - Cardbus-adapter USR54 - the traffic chased between a computer c wireless PCI-adapterom U.S.Robotics USR54 and noutbukom with wireless Cardbus-adapterom U.S.Robotics USR5411. Speed of connection was established automatically in mode IEEE 802.11g and IEEE 802.11b. The test was spent by means of Chariot NetIQ. The distance between points did not exceed meters. The maximal speed: 28. Mbit/s in mode IEEE 802.11g and 6. Mbit/s - in mode IEEE 802.11b. In both modes speed of the traffic very high. Speeds in both directions about identical. Test Cardbus-adapter USR54 - USB-adapter USR54 - the traffic chased between noutbukom c wireless Cardbus-adapterom U.S.Robotics USR54 and a computer with wireless USB-adapterom U.S.Robotics USR5421. Speed of connection was established high end notebook reviews automatically in mode IEEE 802.11g and IEEE 802.11b. The test was spent by means of Chariot NetIQ. The distance between points did not exceed meters. The maximal speed: 27. Mbit/s in mode IEEE 802.11g and 6. Mbit/s - in mode IEEE 802.11b. As well as in the last test, parameters of speed very high. Test USB-adapter USR54 - PCI-adapter USR54 - the traffic chased between a computer c wireless USB-adapterom U.S.Robotics USR54 and a computer with wireless PCI-adapterom U.S.Robotics USR5417. Speed of connection was established automatically in mode IEEE 802.11g and IEEE 802.11b. The test was spent by means of Chariot NetIQ. The distance between points did not exceed meters. The maximal speed: 22. Mbit/s in mode IEEE 802.11g and 6. Mbit/s - in mode IEEE 802.11b. In mode IEEE 802.11b speed very high. In mode IEEE 802.11g speed too high, but, in comparison with the previous tests, it has strongly decreased. Distribution of speeds became dissymetric: speed of the traffic from USB-adaptera to PCI-adapteru below speed in the opposite direction, both in a half-duplex mode, and in polnodupleksnom. Availability: on the device considered in clause for last high end notebook reviews moment: U.S.Robotics USR54 Cardbus $ (8) U.S.Robotics USR54 PCI $ (9) U.S.Robotics USR54 USB $ (3) Conclusions: the Considered equipment shows very much high efficiency and it without support of modes of increase of speed (such as MAXg). In addition to it, adapters possess ample opportunities of adjustment of safety, such as support AES-shifrovaniya and WPA2. In mode AdHoc of the device can communicate for the speed Mbit/s. Thus, the device has very high parameters, and thus without patent defects. It is impossible to tell, that the price for wireless adapters low, but also high it to name it is impossible, especially if to consider it in the ratio cena/proizvoditel'nost' and to add to it a set of opportunities. Pluss: High efficiency the Opportunity of work in mode AdHoc for the speed Mbit/s Support AES-shifrovaniya Support WPA of enciphering the Opportunity of use of a mode of increase of speed (MAXg) Minuses: Obvious minuses it is not revealed Other discussions in conference:

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