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Description
Ethernet Shield W5100This Ethernet Shield for Arduino allows an Arduino board to connect to the internet. It is based on the Wiznet W5100 ethernet chip. The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP. It supports up to four simultaneous socket connections. Use the Ethernet library to write sketches which connect to the internet using the shield. The new Ethernet shield now includes a micro SD card connector, it is MEGA compatible and an on
This Ethernet Shield for Arduino allows an Arduino board to connect to the internet. It is based on the Wiznet W5100 ethernet chip. The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP.It supports up to four simultaneous socket connections. Use the Ethernet library to write sketches which connect to the internet using the shield. The new Ethernet shield now includes a micro SD card connector, it is MEGA compatible and an on-board reset controller. The ethernet shield connects to an board using long wire-wrap headers which extend through the shield. This keeps the pin layout intact and allows another shield to be stacked on top.uses digital pins 10, 11, 12, and 13 (SPI) to communicate with the W5100 on the ethernet shield.
These pins cannot be used for general i/o.
-Can be used as server or client. -Directly plug puzzle board, no soldering required. -Based on the Wiznet W5100 Ethernet Chip.
-This is the latest version of the Ethernet Shield.
-Directly supported official Ethernet Library.
-Adds a micro-SD card slot, which can be used to store files for serving over the network.
-Compatible with the Arduino Duemilanove (168 or 328), Uno as well as Mega (1280/2560) and can be accessed . Using the SD library.
-MAC address: 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
Direct plug puzzle board, NO soldering needed
Supports reading and writing mini SD / TF card
Brand new ethernet shield with wiznet W5100 ethernet chip
The Ethernet W5100 network expansion module allows the Arduino to be a simple Web server
With Micro SD card slot, supports SD card up to 2GB, supports 2009, UNO, mega 1280, mega 2560, Nano, Duemilanove.
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4.5 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Nice and Sturdy. Great quality
Color: Dark Black
This a very well built sturdy chair. It was easy to put together and it came very fast in the mail. I have had 2 other office chairs made by other compaines and they were nice but they both seemed a little loose and not solid enough. they all lasted less than an year. This one is solid, well built and will likely last a lone time. It is easy to adjust also. Its nice and wide also.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Great value
Color: Dark Black
Great size and comfort. Very fair price for the quality of the piece. I like the back support and mobility.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Great find!!
Color: White Rose Velvet, Color: White Rose Velvet
This thing rocks. I hope it lasts longer than my last gaming chair bc it was double the price. It arrived days earlier than estimated, is soft, comfortable, and really pretty. I did not love the instructions, but I figured out assembly without too much trouble. It reclines without falling over and goes up and down smoothly. My cats immediately love it, so I’m really happy! Let’s hope it withstands longevity.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Great and comfy
Color: White
This is genuinely such a good chair and super comfy, the assembly was a little confusing at first but it’s very simple once you get started. I’m 5’2 and it’s nice and big, you can sit however you want and although it is expensive I do think it’s worth it. You can fully recline down to sleep if you wanted as well. It’s nicely designed and sturdy. Definitely get it if you are thinking about it!!
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Reviewed in the United States on June 5, 2026
★★★★★ 5
LIFE-CHANGING. The only chair you'll ever want or need.
Color: Black
So... This chair has absolutely changed my life. I don't often leave reviews, but this is WORTH IT. I want one in every room in my home. Just as the other reviewer with the 'life-changing chair' title to their review: I've had 100% the same experience - especially as someone who sits 3,000 different ways w/ ADHD lol. So, in addition to agreeing with all those comments...
I'll just add a few more thoughts here to further convince you:
- I received the Cream/Teddy one as a Christmas gift and have literally have looked forward to sitting it in for work every. single. morning. for work.
- I *ALSO* purchased a second one in the black velvet one to gift to my partner and his experience has also been 'life-changing.' (The black velvet is definitely sleeker looking, almost a teeny slippery, but just beautiful fabric. Love it. A note here: the fabric came with a crease, which steamed out no problem.)
- I sit and edit websites and photo/video everyday, all day, for work, and I also spend a good chunk of my time gaming with my partner. (Now we are *both* very comfortable for those longer 5+ hour sessions.)
- Previously I had tried the viral criss-cross chair and while it was cute and great at first, it just didn't hold up and started causing numb spots on my lower back after ~2 hours. Not an all-day chair at all. This one has solved all back issues for me!
Size: definitely big & the back is quite a tall height but it makes you feel cozy, supported, *and* you can lean back, recline, adjust every little bit you like, have space for a velcro cat, sit criss-cross or 3,000 other ways as a ADHDr trying to sit all day, lol, etc. -- all things I was looking for in an upgrade. For reference, it fits someone 5'5" to 6"5" just as comfortably. I'd say it feels on the bigger side for someone under 6 foot, but personally, I love that. It's like a real adult chair - much needed if you sit for 6+ hours a day.
Leg rest: Easy to flip out, I love using this so you can sit cross cross AND lean back, or just as extra 'accommodate the cat' space.
Noise level: the arms clicking down/adjusting is loud, but I don't find myself adjusting them all that often. Especially when my cat claims this chair first, anticipating the start of our work day.
Comfort level: 100% and 2.5-3 months in, it's still going strong and I'm more obsessed each day.
*To the store: THANK YOU for making this chair, please never stop.
*To the person reading this review: BUY IT. Let this be the review to convince you - your cat will take over the chair and you'll have to fight over it, it's that comfy. I mean, they know best, do they not?
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Reviewed in the United States on February 15, 2026