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Wisblock modular IoT systemWisblock modular IoT system Menu * All News * Reviews * Tutorials * Shop * About + About + Contact Us + Advertisement & Consulting Services + Work for Us + Support CNX Software + Privacy Policy Posted on August 14, 2021August 15, 2021 by Jean-Luc Aufranc (CNXSoft) - 11 Comments on NanoPi R2C is a cheaper dual GbE mini router with YT8521S Gigabit Ethernet PHY NanoPi R2C is a cheaper dual GbE mini router with YT8521S Gigabit Ethernet PHY FriendlyELEC's NanoPi R2C is an updated version of NanoPi R2S dual GbE mini router that replaces Realtek RTL8211E Gigabit Ethernet transceiver with a Motorcomm YT8521S chip. NanoPi R2C mini router still comes with a Rockchip RK3328 quad-core Cortex-A53 processor, 1GB DDR4 memory, and a Realtek RTL8153 USB 3.0 to Ethernet controller for the second Ethernet port. NanoPi R2CNanoPi R2CNanoPi R2C specifications: * SoC - Rockchip RK3328 quad-core Cortex-A53 @ 1.5 GHz with Arm Mali-450MP2 * System Memory - 1GB DDR4 RAM * Storage - MicroSD Slot, SPI flash footprint * Connectivity + 1x Gigabit Ethernet (WAN) up to 941 Mbps (measured) via MotorComm YT8521S Gigabit Ethernet transceiver + 1x Gigabit Ethernet (LAN) up to 941 Mbps (measured) via Realtek RTL8153 USB 3.0 to Ethernet controller * USB - 1x USB 2.0 Type-A host port, USB Type-C port * Debugging - 3-pin 2.54mm pitch header for serial console * Expansion - 10-pin GPIO header with GPIOs, I2C, UART, IR_Rx, 5V, 3.3V and GND * Misc - 3x LEDs (WAN, LAN, SYS), K1 reset button, fan header * Power Supply - 5V/4A DC via USB-C port * Dimensions - Router: 60 x 60 x 29.5 mm; SBC: 55.6 x 52mm * Weight - About 76 grams with enclosure * Temperature Range - -20 to 70 NanoPi R2C vs NanoPi R2SNanoPi R2C vs NanoPi R2SThe company reports the only difference is the Gigabit Ethernet chip, but when I reviewed NanoPi R2S with Armbian last year, it still had a micro USB port for power, so they may have changed it to USB-C in the most recent revision. FriendlyELEC still claims the measured performance is the same, e.g. 941 Mbps with iperf with the new chip, but the system runs a little warner albeit still within an acceptable temperature that does not accept the CPU performance. NanoPi R2S temperature under stressNanoPi R2S temperature under stressThe chart above was performed in a room with a 24degC ambient temperature, with the system under full load, and the CPU frequency kept at 1.5 GHz the whole time. The results may be different in environments with a significantly higher ambient temperature. You may wonder why FriendlyELEC made the change... I don't it boils down to this year's semiconductors supply and cost issues. Last year, NanoPi R2S sold for $25 with the board, and $32.99 with the metal enclosure, and now the price has gone up to $45.90 for the latter. RTL8211E availability & priceRTL8211E availability & price It's easy to see why, as checking for RTL8211E availability on LCSC shows the only place with stock sells the chip for about $20 per unit, or $12.7492 per piece for 100 or more units order, which would represent a significant part of the BoM cost. The "norma;" price for RTL8211 chip used to be under $1. Motorcomm is a fairly new (2017) company based in Suzhou, China, and I can not find YT8521S for sale online, but it must be much cheaper [DEL:and possibly compatible with:DEL] than RTL8211E, which allows NanoPi R2C to be sold for $39 with the metal case. FriendlyELEC does not offer NanoPi R2C as an SBC only. As usual, you'll find documentation on the Wiki. jean-luc aufranc cnxsoftjean-luc aufranc cnxsoft Jean-Luc Aufranc (CNXSoft) Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011. Share this: Support CNX Software! Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples Tagsarmbian, friendlyarm, gateway, Linux, router Related posts: 1. Tiny NanoPi NEO3 SBC Targets Networked Storage with GbE and USB 3.0 2. NanoPi R4S SBC launched with optional metal case for $45 and up 3. NanoPi NEO2 Development Board Powered by Allwinner H5 64-bit ARM Processor Sells for $15 4. ModBerry Industrial Automation Controllers Leverage Raspberry Pi, FriendlyELEC, and AAEON Boards and Modules 5. NanoPi R4S SBC preview with OpenWrt and Ubuntu Core Connect with: FacebookFacebook GoogleGoogle TwitterTwitter Subscribe Login Notify of [new follow-up comments ] [ ] [>] guestguest Label [ ] {} [+] [ ] [ ] Name* [ ] Email* [ ] Website [ ] I agree to the Privacy Policy The comment form collects your name, email and content to allow us keep track of the comments placed on the website. Please read and accept our website Terms and Privacy Policy to post a comment. [ ] [Post Comment] guestguest Label [ ] {} [+] [ ] [ ] Name* [ ] Email* [ ] Website [ ] I agree to the Privacy Policy The comment form collects your name, email and content to allow us keep track of the comments placed on the website. Please read and accept our website Terms and Privacy Policy to post a comment. [ ] [Post Comment] 11 Comments oldest newest Jean-Luc Aufranc (CNXSoft)Jean-Luc Aufranc (CNXSoft) Author Jean-Luc Aufranc (CNXSoft) 2 days ago I've finally found some resources Linux drivers, schematics, datasheets for YT8521S. https://github.com/cnxsoft/YT8521S/ They seem to have drivers for integration into to Rockchip SoC specifically... Reply Jean-Luc Aufranc (CNXSoft)Jean-Luc Aufranc (CNXSoft) Author Jean-Luc Aufranc (CNXSoft) 2 days ago Jean-Luc Aufranc (CNXSoft) I can see Quartz64 is using a another Motor-comm PHY: YT8511 and it's getting mainlined: https://lwn.net/Articles/856283/ Reply itchy 'n' scratchyitchy 'n' scratchy itchy 'n' scratchy 2 days ago Jean-Luc Aufranc (CNXSoft) There was once a time when realtek used to be this unknown newcomer, supplying the (then much smaller ICT-)world with cheap NE2000 clones Reply WillyWilly Willy 2 days ago It's a great move to abandon chips that cannot reasonably be sourced. I suspect that some vendors are taking the opportunity of the worldwide supply shortage to increase their prices, knowing that their customers often have no other option. At least this will send them a signal that if it was intentional it was not necessarily a good idea. Reply TheguyukTheguyuk Theguyuk 2 days ago Still think they should of added a HDMI out ( mini signage, information display ). A S905D3 2GB version with MIPI DSI, CSI, TP, HDMI and M.2 slot ( Khadas are concentrating on Mini PC, no harm in that ). Would open the market but with present parts prices, guess will not happen. Same cost issues with RK3399, looking at Friendlyelec RK3399 board prices. Reply WillyWilly Willy 2 days ago Theguyuk But that's a completely different machine and use case, it's like asking for an HDMI output on a router to watch movies while they're routing packets. What is missing, however, as a headless machine, is an externally accessible console port, because when you lose access to your device or forget its IP address, you have to get back to the screwdriver and figure where you've stored your USB-UART adapter. The lack of console port also prevents using it as a bridge or transparent firewall between the switch and a host, since you have no way to watch what is happening... Read more >> Reply Christopher PriceChristopher Price Christopher Price 2 days ago Very close and yet very far. This is great for mangling packets at gigabit speeds or for some firewall affairs. But it would have been nice if they had hubbed the USB 3.0, and put a 3.0 port alongside USB 2.0. At 5 Gbps, a hubbed USB 3.0 port would have given far more adaptability. Even with Gig-E running 1-2.5 Gbps of overhead, that's still 2.5+ Gbps of bandwidth on the USB 3.0 bus left over. Instead it's port limited to 480 Mbps on the USB 2.0 bus. You could have even put a compliance note like "USB 3.0 2.5... Read more >> Reply itchy 'n' scratchyitchy 'n' scratchy itchy 'n' scratchy 2 days ago Christopher Price It's unlikely both ports will agree on a fair sharing model of the bandwidth. So your super duper USB SSD might starve the USB GbE Reply TLSTLS TLS 2 days ago Christopher Price That's not how USB works. There's no way to dedicate bandwidth to a specific device, it's always shared. Reply David JashiDavid Jashi David Jashi 1 day ago Christopher Price Quite enough for a router, though. Let's not forget it is not a NAS. To me, it seems to be the perfect host for my LTE modem. Right now I have it on my ODROID HC1, which is by all means overkill for such a task. Reply wanderer_wanderer_ wanderer_ 1 day ago Hmmm. $42 for 2x ~900Mb/s Ethernet and no wireless? This product looks great, but I'll stick with something that has a little bit better value. Maybe prices will get a bit better when the chip shortage abates, whenever that is... 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