<p><span style="background-color: white; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em;">There is no doubt that 40G or 100G are becoming increasingly popular with the increasing network speeds and bandwidth. However, the 10G SFP+ transceiver is still the industry’s leading mainstream optical module in terms of quantity used. In today’s blog post, I will give an introduction to the most popular 3 types of SFP+ transceivers SFP-10G-SR, SFP-10G-T, and SFP-10G-LR, comparing the differences and providing a purchase guide between them.</span></p><h1 class="ig ih fw bb da ii ij hq ik il im ht in io ip iq ir is it iu iv iw ix iy iz ja gt" data-selectable-paragraph="" id="ee46" style="background-color: white; box-sizing: inherit; color: #292929; font-family: sohne, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 30px; font-weight: 500; line-height: 36px; margin: 1.95em 0px -0.28em;">Introduction about SFP-10G-SR, SFP-10G-T, and SFP-10G-LR</h1><p class="hm hn fw ho b hp jb hq hr hs jc ht hu hv jd hw hx hy je hz ia ib jf ic id if dn gt" data-selectable-paragraph="" id="ddd0" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 0.86em 0px -0.46em; word-break: break-word;">SFP-10G-SR, SFP-10G-T, SFP-10G-<span id="rmm" style="box-sizing: inherit;">L</span>R all feature as SFP+ form factors, enabling 10G data rate transmission and applied in 10G Ethernet connectivity. They are also compliant with SFP+ MSA and SFP-8431 standards. The above mentioned are the common ground among them. Next, we will explore the differences between them. Before exploring the differences, we need to figure out what they are.</p><h1 class="ig ih fw bb da ii ij hq ik il im ht in io ip iq ir is it iu iv iw ix iy iz ja gt" data-selectable-paragraph="" id="7184" style="background-color: white; box-sizing: inherit; color: #292929; font-family: sohne, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 30px; font-weight: 500; line-height: 36px; margin: 1.95em 0px -0.28em;">What is SFP-10G-SR?</h1><p class="hm hn fw ho b hp jb hq hr hs jc ht hu hv jd hw hx hy je hz ia ib jf ic id if dn gt" data-selectable-paragraph="" id="831f" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 0.86em 0px -0.46em; word-break: break-word;">SR stands for Short Range that indicates&nbsp;<a class="dx jg" href="https://www.qsfptek.com/product/30953.html" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit;" target="_blank"><span class="ho fx" style="box-sizing: inherit; font-weight: 700;">SFP-10G-SR</span></a>&nbsp;is designed for short-range optical connections. It supports link lengths up to 300m over OM3 and up to 400m over OM4. the 10G SFP+ SR transceiver works at the wavelength of 850nm. Since SFP+ 10G SR works with multimode fiber at the wavelength of 850nm to reach a short-range distance, it adopts VCSEL laser.</p><h1 class="ig ih fw bb da ii ij hq ik il im ht in io ip iq ir is it iu iv iw ix iy iz ja gt" data-selectable-paragraph="" id="b756" style="background-color: white; box-sizing: inherit; color: #292929; font-family: sohne, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 30px; font-weight: 500; line-height: 36px; margin: 1.95em 0px -0.28em;">What is SFP-10G-LR?</h1><p class="hm hn fw ho b hp jb hq hr hs jc ht hu hv jd hw hx hy je hz ia ib jf ic id if dn gt" data-selectable-paragraph="" id="b1bd" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 0.86em 0px -0.46em; word-break: break-word;">LR stands for Long Range.&nbsp;<a class="dx jg" href="https://www.qsfptek.com/product/73112.html" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit;" target="_blank"><span class="ho fx" style="box-sizing: inherit; font-weight: 700;">SFP-10G-LR</span></a>&nbsp;transceiver is applied for a relatively longer transmission distance to SFP-10G-SR. It supports a link length of 10km on Single-Mode Fiber (SMF). The 10G SFP+ LR transceiver works at the wavelength of 1310nm. Since SFP+ works with single-mode fiber at the wavelength of 1310nm to reach a long-range distance, it adopts a DFB laser.</p><h1 class="ig ih fw bb da ii ij hq ik il im ht in io ip iq ir is it iu iv iw ix iy iz ja gt" data-selectable-paragraph="" id="6624" style="background-color: white; box-sizing: inherit; color: #292929; font-family: sohne, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 30px; font-weight: 500; line-height: 36px; margin: 1.95em 0px -0.28em;">What is SFP-10G-T?</h1><p class="hm hn fw ho b hp jb hq hr hs jc ht hu hv jd hw hx hy je hz ia ib jf ic id if dn gt" data-selectable-paragraph="" id="a082" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 0.86em 0px -0.46em; word-break: break-word;"><a class="dx jg" href="https://www.qsfptek.com/product/73590.html" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit;" target="_blank"><span class="ho fx" style="box-sizing: inherit; font-weight: 700;">SFP-10G-T</span></a>&nbsp;is also known as a 10G copper SFP+ Rj45 transceiver, which features an Rj45 interface. It supports up to 30m at 10 Gbps over Cat6A/Cat7 or better and up to 100m at 100M/1Gbps over Cat5e/Cat6A/Cat7 or better. SFP-10G-T carries electronic signals, and it doesn’t have a laser component.</p><figure class="jn jo jp jq jr js fe ff paragraph-image" style="background-color: white; box-sizing: inherit; clear: both; color: rgba(0, 0, 0, 0.8); font-family: medium-content-sans-serif-font, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Oxygen, Ubuntu, Cantarell, &quot;Open Sans&quot;, &quot;Helvetica Neue&quot;, sans-serif; margin: 56px auto 0px;"><div class="fe ff aej" style="box-sizing: inherit; margin-left: auto; margin-right: auto; max-width: 497px;"><div class="kb s ap kc" style="background-color: #f2f2f2; box-sizing: inherit; margin: auto; position: relative;"><div class="aek ke s" style="box-sizing: inherit; height: 0px; padding-bottom: 381.997px;"><div class="en jx ed eq em ev w jy jz ka" style="box-sizing: inherit; height: 381.997px; left: 0px; opacity: 0; overflow: hidden; position: absolute; top: 0px; transform: translateZ(0px); transition: opacity 100ms ease 400ms; width: 496.997px; will-change: transform;"><img alt="10GBASE-T Copper Rj45 SFP+" class="ed eq em ev w kf kg af pu" height="382" src="https://miro.medium.com/max/48/1*jUoZXjrnEIMTBuC14qQ3Ng.png?q=20" style="box-sizing: inherit; filter: blur(20px); height: 381.997px; left: 0px; position: absolute; top: 0px; transform: scale(1.1); transition: visibility 0ms ease 400ms; vertical-align: middle; visibility: hidden; width: 496.997px;" width="497" /></div><img alt="10GBASE-T Copper Rj45 SFP+" class="mf oj ed eq em ev w c" height="382" sizes="497px" src="https://miro.medium.com/max/795/1*jUoZXjrnEIMTBuC14qQ3Ng.png" srcset="https://miro.medium.com/max/442/1*jUoZXjrnEIMTBuC14qQ3Ng.png 276w, https://miro.medium.com/max/795/1*jUoZXjrnEIMTBuC14qQ3Ng.png 497w" style="background-color: white; box-sizing: inherit; height: 381.997px; left: 0px; opacity: 1; position: absolute; top: 0px; transition: opacity 400ms ease 0ms; vertical-align: middle; width: 496.997px;" width="497" /></div></div></div></figure><h1 class="ig ih fw bb da ii ij hq ik il im ht in io ip iq ir is it iu iv iw ix iy iz ja gt" data-selectable-paragraph="" id="579a" style="background-color: white; box-sizing: inherit; color: #292929; font-family: sohne, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 30px; font-weight: 500; line-height: 36px; margin: 1.95em 0px -0.28em;">Differences of SFP-10G-SR vs SFP-10G-T vs SFP-10G-LR</h1><p class="hm hn fw ho b hp jb hq hr hs jc ht hu hv jd hw hx hy je hz ia ib jf ic id if dn gt" data-selectable-paragraph="" id="2cd5" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 0.86em 0px -0.46em; word-break: break-word;">As mentioned above, you must have a rough understanding that the three popular types of SFP+ transceiver mainly differ in maximum transmission distance, connector, wavelength, matching cable, component, and so on.</p><h1 class="ig ih fw bb da ii ij hq ik il im ht in io ip iq ir is it iu iv iw ix iy iz ja gt" data-selectable-paragraph="" id="e9f7" style="background-color: white; box-sizing: inherit; color: #292929; font-family: sohne, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 30px; font-weight: 500; line-height: 36px; margin: 1.95em 0px -0.28em;">Differ in Maximum Transmission Distance</h1><p class="hm hn fw ho b hp jb hq hr hs jc ht hu hv jd hw hx hy je hz ia ib jf ic id if dn gt" data-selectable-paragraph="" id="dce5" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 0.86em 0px -0.46em; word-break: break-word;">Both SFP-10G-SR and SFP-10G-T are suitable for short-distance while SFP-10G-LR is designed for long-distance. Although both 10GBASE SFP+ SR and 10GBASE-T are suitable for short-distance, there still has been a distinction between their applications. Since the 10GBASE-T copper Rj45 transceiver only supports distances up to 30m at 10 Gbps, it is generally applied within racks and across adjacent racks, whereas 10G SFP+ SR gets a wider range of application environments.</p><h1 class="ig ih fw bb da ii ij hq ik il im ht in io ip iq ir is it iu iv iw ix iy iz ja gt" data-selectable-paragraph="" id="69d1" style="background-color: white; box-sizing: inherit; color: #292929; font-family: sohne, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 30px; font-weight: 500; line-height: 36px; margin: 1.95em 0px -0.28em;">Differ in Matching Cables</h1><p class="hm hn fw ho b hp jb hq hr hs jc ht hu hv jd hw hx hy je hz ia ib jf ic id if dn gt" data-selectable-paragraph="" id="e88e" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 0.86em 0px -0.46em; word-break: break-word;">SFP-10G-SR and SFP-10G-LR transmit optical signals while SFP-10G-T transmit electronic signals. So both 10GBASE SFP+ SR and 10GBASE SFP+ LR work with fiber optic cable and 10GBASE-T transceivers work with copper cable. Furthermore, 10G SR SFP+ works over OM3 to support up to 300m distances and up to 400m distances on OM4. 10GBASE-T works over Cat6A/Cat7 to support 30m at 10 Gbps speed, moreover, 10GBASE-T is back compatible with 100M/1G Ethernet over Cat5e/Cat6A/Cat7 to support up to 100m.</p><h1 class="ig ih fw bb da ii ij hq ik il im ht in io ip iq ir is it iu iv iw ix iy iz ja gt" data-selectable-paragraph="" id="f458" style="background-color: white; box-sizing: inherit; color: #292929; font-family: sohne, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 30px; font-weight: 500; line-height: 36px; margin: 1.95em 0px -0.28em;">Differ in Power Consumption</h1><p class="hm hn fw ho b hp jb hq hr hs jc ht hu hv jd hw hx hy je hz ia ib jf ic id if dn gt" data-selectable-paragraph="" id="2e58" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 0.86em 0px -0.46em; word-break: break-word;">10GBASE-T transceivers have a power consumption of 2.5 watts, which is nearly 3 times of 10G SR SFP+ and 10G LR SFP+. So it’s worth noting that 10GBASE-T has a heating problem at runtime. There was a customer complaining when setting up multiple copper SFP+ modules on his router switch and these modules are heating up to 72°C at &lt; 26°C environments.</p><p class="hm hn fw ho b hp jh hq hr hs ji ht hu hv jj hw hx hy jk hz ia ib jl ic id if dn gt" data-selectable-paragraph="" id="c99b" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 2em 0px -0.46em; word-break: break-word;">Table 1 shows you their major differences clearly and completely, and it is also considered as a purchasing guide when you hesitate between these three types of SFP+ transceivers.</p><figure class="jn jo jp jq jr js fe ff paragraph-image" style="background-color: white; box-sizing: inherit; clear: both; color: rgba(0, 0, 0, 0.8); font-family: medium-content-sans-serif-font, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Oxygen, Ubuntu, Cantarell, &quot;Open Sans&quot;, &quot;Helvetica Neue&quot;, sans-serif; margin: 56px auto 0px;"><div class="fe ff ael" style="box-sizing: inherit; margin-left: auto; margin-right: auto; max-width: 614px;"><div class="kb s ap kc" style="background-color: #f2f2f2; box-sizing: inherit; margin: auto; position: relative;"><div class="aem ke s" style="box-sizing: inherit; height: 0px; padding-bottom: 222.995px;"><div class="en jx ed eq em ev w jy jz ka" style="box-sizing: inherit; height: 222.995px; left: 0px; opacity: 0; overflow: hidden; position: absolute; top: 0px; transform: translateZ(0px); transition: opacity 100ms ease 400ms; width: 613.993px; will-change: transform;"><img alt="Table 1 — SFP-10G-SR vs SFP-10G-T vs SFP-10G-LR Specification" class="ed eq em ev w kf kg af pu" height="223" src="https://miro.medium.com/max/48/1*UJIftZB1iDoEo7LgFoSV4Q.png?q=20" style="box-sizing: inherit; filter: blur(20px); height: 222.995px; left: 0px; position: absolute; top: 0px; transform: scale(1.1); transition: visibility 0ms ease 400ms; vertical-align: middle; visibility: hidden; width: 613.993px;" width="614" /></div><img alt="Table 1 — SFP-10G-SR vs SFP-10G-T vs SFP-10G-LR Specification" class="mf oj ed eq em ev w c" height="223" sizes="614px" src="https://miro.medium.com/max/982/1*UJIftZB1iDoEo7LgFoSV4Q.png" srcset="https://miro.medium.com/max/442/1*UJIftZB1iDoEo7LgFoSV4Q.png 276w, https://miro.medium.com/max/883/1*UJIftZB1iDoEo7LgFoSV4Q.png 552w, https://miro.medium.com/max/982/1*UJIftZB1iDoEo7LgFoSV4Q.png 614w" style="background-color: white; box-sizing: inherit; height: 222.995px; left: 0px; opacity: 1; position: absolute; top: 0px; transition: opacity 400ms ease 0ms; vertical-align: middle; width: 613.993px;" width="614" /></div></div></div><figcaption class="ki kj fg fe ff kk kl bb b bc bd bz" data-selectable-paragraph="" style="box-sizing: inherit; color: #757575; font-family: sohne, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; line-height: 20px; margin-left: auto; margin-right: auto; margin-top: 10px; max-width: 728px; text-align: center;">Table 1 — SFP-10G-SR vs SFP-10G-T vs SFP-10G-LR Specification</figcaption></figure><h1 class="ig ih fw bb da ii ij hq ik il im ht in io ip iq ir is it iu iv iw ix iy iz ja gt" data-selectable-paragraph="" id="2f24" style="background-color: white; box-sizing: inherit; color: #292929; font-family: sohne, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 30px; font-weight: 500; line-height: 36px; margin: 1.95em 0px -0.28em;">Conclusion</h1><p class="hm hn fw ho b hp jb hq hr hs jc ht hu hv jd hw hx hy je hz ia ib jf ic id if dn gt" data-selectable-paragraph="" id="fb3b" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 0.86em 0px -0.46em; word-break: break-word;">The mentioned above tell us the main difference of 10G SR SFP+, 10G LR SFP+ and copper 10GBASE-T SFP+ at supported transmission distance, matching cable and power consumption, so when you hesitate between them, you could take these differences account and combine your existing switch or router device and application environments.</p><p class="hm hn fw ho b hp jh hq hr hs ji ht hu hv jj hw hx hy jk hz ia ib jl ic id if dn gt" data-selectable-paragraph="" id="89e7" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 2em 0px -0.46em; word-break: break-word;">If you have a purchase demand for them,&nbsp;<a class="dx jg" href="https://www.qsfptek.com/" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit;" target="_blank"><span class="ho fx" style="box-sizing: inherit; font-weight: 700;">QSFPTEK</span></a>&nbsp;will be a good choice. QSFPTEK 10G SFP+ series modules compatible with Cisco SFP+ 10G. Arista, Juniper, Brocade, Intel compatibility are also available, each of which has been tested on target switches. Welcome to inquire at&nbsp;<a class="dx jg" href="mailto:sales@qsfptek.com" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit;" target="_blank">sales@qsfptek.com</a>.</p><p class="hm hn fw ho b hp jh hq hr hs ji ht hu hv jj hw hx hy jk hz ia ib jl ic id if dn gt" data-selectable-paragraph="" id="89e7" style="background-color: white; box-sizing: inherit; color: #292929; font-family: charter, Georgia, Cambria, &quot;Times New Roman&quot;, Times, serif; font-size: 21px; letter-spacing: -0.003em; line-height: 32px; margin: 2em 0px -0.46em; word-break: break-word;"><br /></p><h3 style="text-align: left;">You Might Like:</h3><a href="https://www.qsfptek.com/article/how-much-do-you-know-about-10g-sfp-modules" target="_blank">How Much Do You Know About 10G SFP+ Modules?</a><div><a href="https://www.qsfptek.com/article/this_is_the_most_detailed_10G_SFP+_SR_introduction" target="_blank">This Is The Most Detailed 10G SFP+ SR Introduction</a></div>