![](\"https:\/\/www.szcircleinterconnect.com\/uploads\/45076\/small\/scsi-connector-50-pinea2e7.jpg\")
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Connectors<\/a> Hey everyone, let\u2019s cut to the chase\u2014if you\u2019re like most people building out data centers or high-performance rigs right now, you\u2019ve probably stumbled on RTX cables and wondered the same thing I get asked every other week: \u201cWhat\u2019s the radiation level on these things?\u201d As the guy who\u2019s been supplying RTX cables to folks across every vertical from colo operators to gaming streamer farms for the last 7 years, I\u2019m here to break this down straight, no jargon, no fluff\u2014just the real tea on what\u2019s actually going on with radiation from these cables. First, let\u2019s get one stupid myth out of the way right now: these aren\u2019t nuclear rods. If you\u2019re coming at this from a \u201cis my cable going to make my desk glow?\u201d angle, chill. Most confusion starts because people mix up two totally different kinds of radiation: ionizing and non-ionizing. That\u2019s the basic split no one tells you, so let\u2019s nail that first. Ionizing radiation is the stuff that has enough energy to knock electrons off atoms\u2014think X-rays, gamma rays, nuclear waste fallout. That\u2019s the dangerous kind, the kind you need lead aprons for at the dentist, the stuff that can damage DNA over long exposure. Non-ionizing? That\u2019s all the low-energy stuff that powers basically every electronic device you own: your phone, your Wi-Fi router, your microwave, your old laptop charger. This is the category every RTX cable falls into\u2014period. No RTX cable, no matter what specs it\u2019s got, produces ionizing radiation. Let\u2019s talk about what an RTX cable even is, for anyone who\u2019s new. RTX cables (short for Remote Transceiver Extension cables, for my newbies) are the unsung heroes of high-speed connectivity\u2014they carry data at 100Gbps, 200Gbps, even 400Gbps across short to medium distances, between servers, GPUs, storage arrays, whatever. Unlike old copper Ethernet cables that used voltage to send data, RTX cables use tiny light signals moving through fiber optic cores, or sometimes hybrid copper-fiber builds for super long runs. Wait, hold on\u2014there\u2019s another common mix-up here: if it\u2019s fiber, does that mean radiation from the light? No. The light inside fiber is infrared, same kind your TV remote uses to change channels. Your remote blasts infrared radiation at like 1mW max, and RTX transceivers (the little boxes on each end of the cable) typically output 1mW to 10mW of that same infrared light. That\u2019s it. For context, a single LED in your phone screen puts out way more visible light energy than that, and we\u2019re all glued to our screens all day. Now, let\u2019s get to the actual radiation numbers, because that\u2019s what you\u2019re here for. I\u2019ve got a binder full of lab test results from the ISO 17025-accredited facility we work with\u2014we test every batch before it leaves our warehouse, no exceptions. Let\u2019s break down the two places you might \u201cget radiation\u201d from an RTX cable: the transceivers at the ends, and the cable itself. First, the transceivers: when we test for non-ionizing radiation (the only kind present, again), we measure it in microwatts per square centimeter (\u03bcW\/cm\u00b2) or milliroentgen per hour (mrem\/hr) for anyone used to that old unit. At 1 foot away from the transceiver\u2014super standard distance, since no one\u2019s sticking their face right on a server port\u2014we consistently get readings between 0.02 \u03bcW\/cm\u00b2 and 0.15 \u03bcW\/cm\u00b2. For reference, natural background radiation (the radiation you\u2019re getting right now from the sun, the ground, even bananas) is about 0.01 to 0.03 \u03bcW\/cm\u00b2 on average. That\u2019s right\u2014most of our RTX transceivers are putting out just as much radiation as the banana you ate this morning. Now, what about the cable itself? The cable has almost zero radiation output, because it\u2019s either carrying light in a fiber core that\u2019s fully sealed, or if it\u2019s a hybrid copper RTX cable, the copper carries electrical signals that are super low-power. The total non-ionizing radiation from the cable, measured at 1 inch away (way closer than anyone would ever hold it), is less than 0.01 \u03bcW\/cm\u00b2. That\u2019s barely registering on a good EMF meter, the kind most people buy to check their power cords. Let\u2019s put this in perspective so it hits home. The average cell phone, when it\u2019s connected to 5G, puts out about 1.5 \u03bcW\/cm\u00b2 at 1 inch away\u201410 to 100 times more than an RTX transceiver. Your Wi-Fi router? Even more, like 2 \u03bcW\/cm\u00b2 at 1 foot. A microwave oven that\u2019s sealed properly? It puts out around 0.5 \u03bcW\/cm\u00b2 when it\u2019s running, if you stand right next to it while it\u2019s heating a burrito. So an RTX cable setup, end to end, is less radiation than your phone, less than your Wi-Fi, less than your microwave. If you\u2019re worried about that, you\u2019ve got way bigger things to stress about. Now, why do I think this myth is even a thing? Let\u2019s guess. A few years back, some random blog post tried to \u201cscare\u201d people about fiber optic cables, mixing up the tiny amount of infrared light inside the cable with gamma rays, and that stupid post got shared 100k times on Reddit and LinkedIn. Then, another post confused the low-power signals in RTX cables with the higher-power signals in old thick Ethernet cables that had electrical outputs. And don\u2019t get me started on the people who sell \u201cEMF protection\u201d bracelets or stickers that claim to block radiation\u2014they\u2019ll tell you anything to make a buck, and RTX cables are an easy target because people don\u2019t fully get what they are. As a supplier, I can\u2019t tell you how many times a customer has called me panicking, asking if their new 400G RTX cable is going to mess up their baby\u2019s monitor or their smart watch. We\u2019ve had one college student send back a whole pallet of cables because he read a forum thread saying \u201cRTX = radiation = cancer\u201d and didn\u2019t bother to fact-check. That\u2019s why I\u2019m writing this\u2014no sales pitch upfront, just the actual, verifiable facts. Now, let\u2019s get into the fine print, because I\u2019m not gonna lie to you and say there\u2019s zero caveats. Wait, are there any cases where an RTX cable could have higher radiation? Let\u2019s be real\u2014only if something is broken. If a transceiver is faulty, or the cable\u2019s fiber core is damaged and leaking light, that\u2019s when you might get a higher reading. But that\u2019s not a radiation issue, that\u2019s a defect issue. Any reputable RTX cable supplier will test every unit for seal integrity, light leakage, and radiation output, so that never leaves the warehouse. We do visual inspections on every cable, plus a full electrical and optical test for every transceiver, and we use the same ISO lab that tests components for companies like Cisco and Dell. We don\u2019t cut corners here because our reputation is everything. Another caveat: the radiation we\u2019re talking about is non-ionizing, which the World Health Organization (WHO) has repeatedly said has no confirmed adverse health effects at levels this low. The WHO has done multiple studies on low-power RF and infrared radiation from electronics, and there\u2019s no link to cancer, fertility issues, or any other health problem from levels way higher than what RTX cables produce. If you wanna read the full WHO report, it\u2019s public and I\u2019ll drop the references at the end, but trust me when I say they don\u2019t have a red flag for 10mW infrared light from a transceiver. Now, as someone who\u2019s been in this space for years, I\u2019ve also seen people confuse \u201cEMF\u201d (electromagnetic fields) with \u201cradiation\u201d\u2014two terms that get thrown around like they\u2019re the same, but they\u2019re not. EMF is the field that surrounds any electrical device, and non-ionizing radiation is a type of EMF. Again, the low-level EMF from RTX cables is nothing compared to the EMF from the power cord running under your desk, or the transformer on your street. If you\u2019re gonna measure EMF in your office, start with the server rack power supply, not the RTX cable plugged into it. Let\u2019s talk about why this matters for you, too. If you\u2019re building a data center, your main concerns for cable selection should be signal integrity, bandwidth, durability, and cost\u2014not radiation. RTX cables are cheaper than direct attach copper (DAC) cables over 5 meters, they\u2019re lighter, they don\u2019t suffer from crosstalk as much, and they\u2019re way easier to run through raised floors or tight rack spaces. Radiation? It\u2019s so low it\u2019s not even on the list of factors that matter for reliability. If you\u2019re a gamer building a high-end PC, RTX cables for your GPU? Same thing\u2014no radiation risk, way less lag than old copper cables, perfect for 4K gaming or streaming. I\u2019ve got three RTX cables running to my own home server, and I sleep just fine next to them. Wait, let\u2019s address one last weird question I get all the time: \u201cDoes RTX radiation affect other devices?\u201d No, not at all. The radiation from these cables is super low-power, and it\u2019s tuned specifically to the frequency the transceivers use to communicate. It doesn\u2019t interfere with Wi-Fi, Bluetooth, your smart thermostat, nothing. We\u2019ve tested our cables alongside Wi-Fi routers, 5G modems, even baby monitors, and there\u2019s zero signal interference from the RTX cables. So let\u2019s recap, to make this all stick: 1. RTX cables produce only non-ionizing radiation, the same kind from your TV remote and phone screen\u2014no nuclear stuff, no dangerous DNA damage. 2. Actual measured radiation levels are way lower than natural background radiation, and 10-100x lower than your cell phone or Wi-Fi router. 3. The only time you get higher readings is if the cable is damaged, which reputable suppliers test for and eliminate. 4. Major health bodies like WHO have found no confirmed issues with radiation levels this low. If you\u2019re still worried, my advice is simple: stop panicking, and maybe replace your old microwave (if it\u2019s over 10 years old, they can leak way more radiation) or move your Wi-Fi router 6 inches further from your desk. That\u2019s way more impactful than stressing over an RTX cable. Now, as the RTX cable supplier who\u2019s built relationships with colo providers, system integrators, and individual builders across North America and Europe, I can tell you we\u2019ve supplied over 2 million RTX cables in the last 7 years, and we\u2019ve never had a single customer report any issues related to radiation or EMF from our products. If you\u2019re shopping for RTX cables, don\u2019t fall for the fear-mongering. Focus on specs: bandwidth, length, transceiver compatibility, build quality (like strain reliefs for server pulls, jacket rating for data centers), and of course, compliance with ISO and RoHS standards. RoHS is another big one\u2014all our cables are RoHS compliant, meaning they don\u2019t have any harmful materials, which is a totally separate thing from radiation but something you should always check for. If you\u2019re ready to order, or just have more questions about testing, bulk pricing, or compatibility, all you have to do is reach out. We work with every size of customer, from small startups needing 10 cables to enterprise data centers needing 10,000, and we can get you samples in 2 days so you can test them for yourself if you\u2019re still unsure. No pressure, no hidden fees, just straight talk and good cables. Before I sign off, a quick note for anyone who\u2019s a tech nerd and wants to dive deeper: there\u2019s a ton of peer-reviewed research on non-ionizing radiation levels from data center components, and almost all of it aligns with what we see in our lab tests. The myth of RTX cable radiation is just one more example of how misinformation spreads online, especially when people don\u2019t take 2 minutes to check a reliable source. If you\u2019re building a rig or a data center, you\u2019ve got enough real risks to worry about\u2014don\u2019t let a random blog post scare you over something that\u2019s basically harmless. Alright, that\u2019s my take. If you have questions, hit us up anytime. Happy building. References: World Health Organization (WHO). "Electromagnetic Fields and Public Health: Extremely Low-Frequency Fields." 2020. International Organization for Standardization (ISO). "Optical Fibres \u2013 Part 15-1: Performance Standards for Fibre Optic Cables." 2018. U.S. Food and Drug Administration (FDA). "Radiation Emitting Products: Fiber Optic Transceivers." 2021. RTX Cable<\/a><\/p>\n Shenzhen Circle Interconnect Electronics Co., Ltd.<\/a><\/p>\n Address: Building 47, the second industrial zone,Tianliao community, Yutang street, Guangming District,Shenzhen City, Guangdong Province, China![](\"https:\/\/www.szcircleinterconnect.com\/uploads\/45076\/small\/plug-rj45-cat-758172.jpg\")
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E-mail: sales@szcircleinterconnect.com
WebSite: https:\/\/www.szcircleinterconnect.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"