Subject: General Tech, Systems | March 22, 2018 - 04:10 PM | Jeremy Hellstrom
Tagged: sbc, Raspberry Pi 3, Raspberry Pi, gigabit ethernet, dual band, bluetooth, 802.11ac
Tim did a great write up of the new hardware found in the Raspberry Pi 3 Model B+ which you should check out below if you missed. Technical specifications are only the first step as we still need to see how the new 1.4GHz Cortex A53's perform in benchmarks and Phoronix have published just that. They compared the Pi 3 to a variety of chips including the previous model, ASUS' Tinkerboard, the two Jetson boards, a few Celerons and even a Core i3. Overall the chip showed an advantage over the previous model; not earth shattering but as the price remains at $35 for the Pi 3 that is still a good deal.
"I've been spending the past few days putting the Raspberry Pi 3 Model B+ through its paces the past few days with an array of benchmarks while comparing the performance to other ARM SBCs as well as a few lower-end Intel x86 systems too. Here is all you need to know about the Raspberry Pi 3 B+ performance."
Here is some more Tech News from around the web:
- 2 + 2 = 4, er, 4.1, no, 4.3... Nvidia's Titan V GPUs spit out 'wrong answers' in scientific simulations @ The Register
- Best Buy Stops Selling Huawei Smartphones @ Slashdot
- Apple to enter trial production of new iPhone series in 2Q18, say sources @ DigiTimes
- ICO still waiting for 'urgent' warrant to raid Cambridge Analytica's London HQ @ The Inquirer
- Mozilla Pulls Advertising from Facebook @ Slashdot
- Facebook's Zuck comes out of hiding, admits company 'made mistakes' @ The Inquirer
- Seagate's HAMR to drop in 2020: Multi-actuator disk drives on the way @ The Register
- Slack's GDPR changes means admins can now snoop on private chats @ The Inquirer
- Tomb Raider Remasters Have Been Cancelled @ [H]ard|OCP
- HITMAN Spring Pack Is FREE For A Limited Time! @ Tech ARP
Subject: General Tech | March 21, 2018 - 11:48 PM | Tim Verry
Tagged: sbc, Raspberry Pi 3, Raspberry Pi, gigabit ethernet, dual band, bluetooth, 802.11ac
The Raspberry Pi Foundation recently released the Raspberry Pi 3 Model B+ with refreshed hardware. The new single board computer retains its predecessor's $35 price tag while including a tweaked SoC with faster clockspeeds and improved power management as well as moves to modern Gigabit Ethernet and dual band 802.11ac Wi-Fi networking. The Pi Foundation has further managed to shield the board such that it can be certified as a radio board under FCC rules which should make end product certification an easier process.
On the outside, not much has changed as the Raspberry Pi 3 Model B+ has the same form factor and board layout and I/O options as previous models. Digging a bit deeper though, nestled under a new heatspreader lies the Broadcom BCM2837B0 which can run its four ARM Cortex A53 cores at up to 1.4 GHz or run at the same 1.2 GHz clocks as the Pi 3 Model B (BCM2837) while using less power. A MaxLinear MxL7704 power management IC regulates board power and processor clockspeeds to keep it from overheating. Below 70°C the SoC runs at 1.4 GHz, but if it heats up to above that it will reduce voltage and clocks to 1.2 GHz. If the chip continues to heat up past 80°C it trips the thermal throttle, and clockspeeds will be further reduced until temperatures fall. The Pi Foundation notes that the new heatspreader should help it run faster and for longer lengths of time than the Pi 3 Model B. On the networking side of things, the upgraded Wi-Fi is powered by a Cypress CYW4355 and a Proant PCB antenna (similar to the one used in the Pi Zero W) for 2.4 GHz and 5 GHz 802.11ac Wi-Fi and Bluetooth 4.2 Low Energy while the Gigabit Ethernet is powered by a LAN7515 chipset.
Note than the wired networking is still limited by the USB 2.0 bus, and the board itself has not been upgraded with USB 3.0 support or any USB 3 ports unlike many of its competitors (which is unfortunate). According to the Pi Foundation, the new SBC can hit 102 Mbps over 5 GHz Wi-Fi and up to 315 Mbps over a wired connection which is a huge boost over the Pi 3 Model B's ~36 Mbps wireless and ~95 Mbps wired performance. Interestingly, the new board features PXE boot turned on by default and support for PoE (802.3af) using a POE HAT which has a switched power supply for converting the 37V DC from PoE sources to the 5V/2.5A needed by the Pi.
The Raspberry Pi 3 with its POE HAT connected via the 40-pin GPIO header.
The Videocore IV GPU, HDMI 1.3, 1GB LPDDR2, USB 2.0, and other features of the small form factor PC remain unchanged. The Pi Foundation plans to produce this model until 2023 and hints at "+" model refreshes for the Pi 3 Model A and Pi CM3 and CM3L compute modules coming soon. The Pi 3 Model B+ is listed for $35 (the same as the non-plus model) and joins the existing lineup of Pi 3s of which the foundation has sold 9 million of so far!
What are your thoughts on the refreshed Pi 3?
Subject: Networking | January 13, 2016 - 12:03 AM | Tim Verry
Tagged: wireless router, tp-link, mu-mimo, gigabit ethernet, CES 2016, 802.11ad, 802.11ac
Last week, TP-Link launched a new wireless router that is the first to support the 802.11ad "WiGig" standard alongside the usual fare of wireless AC, N, B, G, and A Wi-Fi networks. Sporting eight foldable external antennas, the TP-Link Talon AD7200 will be available within the next few months.
The Talon AD7200 features four Gigabit Ethernet ports, two USB 3.0 ports, eight antennas, and an all black casing with status LEDs lighting up the front panel. Two Qualcomm Atheros chipsets along with an unspecified dual core processor clocked at 1.4 GHz make up the internal hardware. One Atheros chipset is solely for the new 802.11ad radio while the other handles the remaining networks.
On the wireless side of things, the router supports simultaneous operation of a 5 GHz 802.11ac, 2.4 GHz 802.11n, and a 60 GHz 802.11ad network. Throughput is rated at up to 1,733 Mbps on the 5 GHz band, 800 Mbps on the 2.4 GHz, and an impressive 4,600 Mbps on the 60 GHz band. The 802.11ad network support is the really interesting part of this router. While the 60 GHz band allows for super fast connections, it has a range of only a few meters and it needs a clear line of sight without any obstructions – the signal can't pass through a person or even a decorative plant for example. This standard was initially intended for the connected living room that would allow users to stream or copy high bit-rate media from a mobile device or computer to your television. In that respect, the 60 GHz band works well and offers up plenty of bandwidth for the job.
The router allows hand-offs from 802.11ad to 802.11ac/n/b/a (eg. when you leave the room you can still stay connected to the network and internet, just on the slower but still fast enough for Internet access network) and supports beamforming and multi-user MIMO. It is using an allegedly user friendly firmware.
It is strange to see a router supporting the standard though when a direct Wi-Fi connection between the computer and TV should do fine. It does open up some interesting possibilities though. Right now, consumer devices supporting 10 Gigabit Ethernet are extremely rare and still not very affordable. With 1 Gigabit links being commonplace for a number of years now they have started to be surpassed by 802.11ac Wi-Fi in (theoretical) throughput (though the ol' hardwired connection still holds stability and latency benefits). There is a new standard NBASE-T aimed at bridging the gap between 1 GbE and 10 GbE for home users that hits 2.5 Gbps and 5 Gbps but that is still very much in its infancy. If you had an 802.11ad access point in every room, or at least the places you needed high bandwidth connections, it would be a definite improvement over a Gigabit Ethernet connection for large file transfers (think a backup to a NAS or offloading pictures and video from your laptop or phone to your desktop for editing). Of course, WiGig docks are also a thing, and offer a wireless alternative to a Thunderbolt docking station.
802.11ad is not revolutionary and it has it's limitations, but it is extremely fast. I'm interested to see the benchmarks and what sort of setup this router will enable. According to Ars Technica, Lenovo and Acer have WiGig laptops and WiGig docks coming out this year, and hopefully USB 3.0 WiGig cards will come out before the end of the year. I have a need for networking speed.
- Killer Wireless-AC 1535 Review: The MU-MIMO Era Begins
- Samsung Announces 60GHz Wi-Fi (802.11ad)
- Dell Releases Wireless 802.11ad Dock With USB 3.0, Mutli-Display Support
Follow all of our coverage of the show at http://pcper.com/ces!
Subject: Networking | March 12, 2014 - 07:56 PM | Tim Verry
Tagged: router, trendnet, gigabit router, gigabit ethernet, ac1900, 802.11ac, 256 qam, networking
Trendnet has launched a new 802.11ac wireless router called the TEW-919DRU. The new dual band router supports speeds up to 1300 Mbps on the 802.11ac network and 600 Mbps on the 2.4GB 802.11n network.
The router is powered by an undisclosed ARM chip clocked at 1GHz and uses six internal 6 dBi antennas along with beamforming technology to increase stability and range. Trendnet includes five RJ-45 Gigabit Ethernet ports (four LAN, one WAN), one USB 3.0 port, and one USB 2.0 port. Users can simultaneously run an 802.11ac Wi-Fi network and an 802.11n Wi-Fi network. Further, users can add an additional guest Wi-Fi network on each 2.4GHz and 5GHz band as well as multiple SSIDs.
Trendnet also touts that the TEW-818DRU comes with a pre-encrypted Wi-Fi network that is setup out of the box with strong encryption; which is a great feature to see. Unfortunately, the benefits of the out-of-the-box Wi-Fi encryption is undermined by the default support of WPS (Wi-Fi Protected Setup) which has been shown to be insecure. Hopefully new firmware will make WPS opt-in rather than opt-out (if it is indeed possible to truly disable on this model) to get the security nod.
The new 'AC1900' TEW-818DRU wireless router will be available this month with an MSRP of $259.99 and 3 year manufacturer warranty.
Introduction and Design
We’re always on the hunt for good docking stations, and sometimes it can be difficult to locate one when you aren’t afforded the luxury of a dedicated docking port. Fortunately, with the advent of USB 3.0 and the greatly improved bandwidth that comes along with it, the options have become considerably more robust.
Today, we’ll take a look at StarTech’s USB3SDOCKHDV, more specifically labeled the Universal USB 3.0 Laptop Docking Station - Dual Video HDMI DVI VGA with Audio and Ethernet (whew). This docking station carries an MSRP of $155 (currently selling for $123 on Amazon.com) and is well above other StarTech options (such as the $100 USBVGADOCK2, which offers just one video output—VGA—10/100 Ethernet, and four USB 2.0 ports). In terms of street price, it is currently available at resellers such as Amazon for around $125.
The big selling points of the USB3SDOCKHDV are its addition of three USB 3.0 ports and Gigabit Ethernet—but most enticingly, its purported ability to provide three total screens simultaneously (including the connected laptop’s LCD) by way of dual HD video output. This video output can be achieved by way of either HDMI + DVI-D or HDMI + VGA combinations (but not by VGA + DVI-D). We’ll be interested to see how well this functionality works, as well as what sort of toll it takes on the CPU of the connected machine.
Continue reading our review of the StarTech USB3SDOCKHDV USB 3.0 Docking Station!!!
Subject: General Tech | October 16, 2013 - 04:11 AM | Tim Verry
Tagged: usb 3.0, Startech, gigabit ethernet, adapter
StarTech has released new USB 3.0 peripherals that enable Gigabit Ethernet with the full 1,000 Mbps throughput. There are four new adapters in total, a Gigabit-to-USB 3.0 adapter in black or white, an adapter with two Gigabit Ethernet ports to USB 3.0, and an adapter with a USB 3.0 hub, Gigabit Ethernet port that connects to your PC via a single USB 3.0 connection.
The new adapters are aimed at ultrabook and other business laptop users who have a limited number of USB 3.0 ports and may not have a physical GbE RJ45 port. The new adapters provide Gigabit Ethernet as well as a USB 3.0 passthrough port so that users do not have to give up a USB port.
The USB 3.0 to Gigabit Ethernet adapter comes in white or black and provides Gigabit Ethernet and a single USB 3.0 port. It has an MSRP of $78.99 USD (£61.99 UK). Alternatively, StarTech has an adapter with a USB 3.0 passthrough and two Gigabit Ethernet ports. That adapter has an MSRP of $103.99 USD (£82.99 UK). Finally, StarTech has a Gigabit Ethernet to USB 3.0 adapter that includes a single RJ45 port and three USB 3.0 ports. The ports can provide enough power to charge mobile devices, including Apple and Android smartphones. The hub adapter has an MSRP of $83.99 USD (£63.99 UK).
All of the new StarTech adapters are available now in the US, Canada, and Europe. Fortunately for users, the actual retail prices are turning out to be much less than the listed MSRPs.
The new adapters are useful for laptops with limited port options and for devices like the new Haswell-powered Intel NUC so that users can get two Gigabit Ethernet ports to enable new home networking or home server functionality.
Subject: General Tech | July 9, 2013 - 03:29 AM | Tim Verry
Tagged: networking, gigabit ethernet, Amped Wireless, 802.11ac
Amped Wireless has launched its new RTA15 wireless router. Featuring 802.11ac wireless technology, the RTA15 is packed with useful features and is coming later this month for $189.99.
The Amped Wireless RTA15 is a wireless router with 802.11n and 802.11ac radios which can operate simultaneously. It packs in five Gigabit Ethernet ports (one WAN, four LAN), a USB port for sharing storage to networked devices, high gain antennas, ten radio signal amplifiers, an unnamed 660MHz processor, and support for a number of management and parental controls.
On the wireless front, the RTA15 supports 300Mbps 802.11n on the 2.4GHz band and 867Mbps 802.11ac on the 5GHz band. In addition to your home wireless network, the router supports up to eight additional guest networks (which can have various restrictions placed upon them). Amped Wireless packed in two 700mW 2.4GHz amplifiers, four (two stage) 5GHz 700mW amplifiers, and four low noise amps to improve signal strength and wireless range. Further, the router includes one 5dBi antenna for the 2.4GHz radio, one 5dBi antenna for the 5GHz radio, and a single dual band antenna.
Other features of the 802.11ac router include website blocking, user and time schedules, a SPI firewall, adjustable radio power output. It also supports WPS and IPv6 for those networks that need either (or both) features.
The router is up for pre-order now on the Amped Wireless website. The RTA15 will begin shipping on July 16, 2013 for $189.99.