{"id":5739,"date":"2026-05-14T05:51:09","date_gmt":"2026-05-14T05:51:09","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/400g-qsfp-dd-transceivers-technology-overview\/"},"modified":"2026-06-22T03:24:01","modified_gmt":"2026-06-22T03:24:01","slug":"400g-qsfp-dd-transceivers-technology-overview","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/400g-qsfp-dd-transceivers-technology-overview","title":{"rendered":"B\u1ed9 thu ph\u00e1t quang QSFP\u2011DD 400G: T\u1ed5ng quan c\u00f4ng ngh\u1ec7"},"content":{"rendered":"<h2 class=\"wp-block-heading\" >Gi\u1edbi thi\u1ec7u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26045-400g-qsfp-dd-osfp-qsfp112.htm?ca=1435&amp;cv=7969\"><strong>400\u202fG QSFP\u2011DD<\/strong><\/a> \u0111\u00e3 tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng c\u1ed1t l\u00f5i c\u1ee7a m\u1ea1ng b\u0103ng th\u00f4ng cao. \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p <strong>400\u202fGbps tr\u00ean m\u1ed7i c\u1ed5ng<\/strong>, LINK-PP LPJ4014CNL Industrial RJ45 Magjack <strong>B\u1ed9 n\u1ed1i d\u1ea1ng nh\u1ecf b\u1ed1n k\u00eanh c\u00f3 m\u1eadt \u0111\u1ed9 k\u00e9p (Quad Small Form-factor Pluggable Double Density \u2013 QSFP-DD)<\/strong> giao di\u1ec7n n\u00e0y nh\u00e2n \u0111\u00f4i m\u1eadt \u0111\u1ed9 k\u00eanh c\u1ee7a c\u00e1c m\u00f4-\u0111un QSFP ti\u00eau chu\u1ea9n, khi\u1ebfn n\u00f3 l\u00fd t\u01b0\u1edfng cho c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn, \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y, t\u00ednh to\u00e1n hi\u1ec7u n\u0103ng cao (HPC) v\u00e0 c\u00e1c ki\u1ebfn tr\u00fac m\u1ea1ng do tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o (AI) \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6774e215319847daae7dc3854e2a665f.webp\" alt=\"QSFP\u2011DD 400G Transceivers\" class=\"wp-image-5735\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6774e215319847daae7dc3854e2a665f.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6774e215319847daae7dc3854e2a665f-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6774e215319847daae7dc3854e2a665f-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6774e215319847daae7dc3854e2a665f-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6774e215319847daae7dc3854e2a665f-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >Y\u1ebfu t\u1ed1 h\u00ecnh d\u1ea1ng &amp; giao di\u1ec7n \u0111i\u1ec7n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ef1a tr\u00ean k\u00edch th\u01b0\u1edbc ch\u00e2n c\u1eafm QSFP28, QSFP\u2011DD t\u00edch h\u1ee3p giao di\u1ec7n \u0111i\u1ec7n 8 k\u00eanh (m\u1ed7i k\u00eanh 50\u202fG s\u1eed d\u1ee5ng \u0111i\u1ec1u ch\u1ebf PAM4 ho\u1eb7c 25\u202fG s\u1eed d\u1ee5ng<strong> <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/understanding-non-return-to-zero-in-digital-communication\/\"><strong>NRZ<\/strong><\/a>), cung c\u1ea5p t\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a l\u00ean \u0111\u1ebfn 400\u202fGbps. Ascent Optics l\u01b0u \u00fd r\u1eb1ng thi\u1ebft k\u1ebf hai h\u00e0ng ch\u00e2n c\u1eafm 76 ch\u00e2n cho ph\u00e9p t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi c\u00e1c thi\u1ebft b\u1ecb QSFP28\/56 \u2014 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m then ch\u1ed1t nh\u1eb1m \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh n\u00e2ng c\u1ea5p m\u1ea1ng di\u1ec5n ra su\u00f4n s\u1ebb.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u0110i\u1ec1u ch\u1ebf PAM4 &amp; c\u1ea5u tr\u00fac k\u00eanh quang<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"1100\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c29ff0a2c7a4addb273df292ffc9eb2.webp\" alt=\"PAM4 Modulation\" class=\"wp-image-5736\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c29ff0a2c7a4addb273df292ffc9eb2.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c29ff0a2c7a4addb273df292ffc9eb2-300x275.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c29ff0a2c7a4addb273df292ffc9eb2-1024x939.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c29ff0a2c7a4addb273df292ffc9eb2-768x704.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c29ff0a2c7a4addb273df292ffc9eb2-13x12.webp 13w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 quang h\u1ecdc 400\u202fG QSFP\u2011DD hi\u1ec7n \u0111\u1ea1i d\u1ef1a v\u00e0o <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-pam4-four-level-pulse-amplitude-modulation-basics\/\"><strong>PAM4<\/strong><\/a><strong> (\u0110i\u1ec1u ch\u1ebf bi\u00ean \u0111\u1ed9 xung b\u1ed1n m\u1ee9c \u2013 Pulse Amplitude Modulation with four levels)<\/strong>. B\u1eb1ng c\u00e1ch m\u00e3 h\u00f3a hai bit tr\u00ean m\u1ed7i k\u00fd hi\u1ec7u, PAM4 nh\u00e2n \u0111\u00f4i th\u00f4ng l\u01b0\u1ee3ng d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n t\u0103ng d\u1ea3i th\u00f4ng t\u00edn hi\u1ec7u \u2014 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi c\u00e1c li\u00ean k\u1ebft t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea5u h\u00ecnh k\u00eanh quang thay \u0111\u1ed5i t\u00f9y theo lo\u1ea1i m\u00f4-\u0111un:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>SR4\/SR8<\/strong>: 4 ho\u1eb7c 8 k\u00eanh \u0111a mode song song (v\u00ed d\u1ee5: c\u00e1c m\u00f4-\u0111un SR4 s\u1eed d\u1ee5ng 4 k\u00eanh song song, m\u1ed7i k\u00eanh ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 kho\u1ea3ng 100\u202fGbps v\u1edbi \u0111i\u1ec1u ch\u1ebf PAM4 (53,125\u202fGBd), trong khi c\u00e1c m\u00f4-\u0111un SR8 s\u1eed d\u1ee5ng 8 k\u00eanh \u1edf t\u1ed1c \u0111\u1ed9 kho\u1ea3ng 50\u202fGbps v\u1edbi \u0111i\u1ec1u ch\u1ebf PAM4 (26,5625\u202fGBd), cho ph\u00e9p thi\u1ebft l\u1eadp c\u00e1c k\u1ebft n\u1ed1i ng\u1eafn t\u1ea7m m\u1eadt \u0111\u1ed9 cao tr\u00ean c\u00e1p quang \u0111a mode). Ph\u00f9 h\u1ee3p l\u00fd t\u01b0\u1edfng cho c\u00e1c k\u1ebft n\u1ed1i t\u1ea7m ng\u1eafn (&lt;100\u202fm) tr\u00ean h\u1ec7 th\u1ed1ng c\u00e1p quang \u0111a mode (MMF) l\u00e0m x\u01b0\u01a1ng s\u1ed1ng.<\/p><\/li><li><p><strong>DR4<\/strong>: Quang h\u1ecdc MPO\u201112 \u0111\u01a1n mode 4 k\u00eanh, h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch ~500\u202fm tr\u00ean c\u00e1p quang \u0111\u01a1n mode (SMF).<\/p><\/li><li><p><strong>FR4<\/strong>: 4 k\u00eanh CWDM 100\u202fG s\u1eed d\u1ee5ng \u0111\u1ea7u n\u1ed1i LC \u0111\u00f4i, h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch 2\u202fkm tr\u00ean c\u00e1p quang \u0111\u01a1n mode (SMF).<\/p><\/li><li><p><strong>LR4<\/strong>: T\u01b0\u01a1ng t\u1ef1 FR4 nh\u01b0ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u1ea1t kho\u1ea3ng c\u00e1ch xa h\u01a1n t\u1edbi 10\u202fkm t\u1ea1i b\u01b0\u1edbc s\u00f3ng 1310\u202fnm.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >Thi\u1ebft k\u1ebf t\u1ea3n nhi\u1ec7t &amp; qu\u1ea3n l\u00fd c\u00f4ng su\u1ea5t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"qc-p1-tag\">Khi v\u1eadn h\u00e0nh \u1edf t\u1ed1c \u0111\u1ed9 400\u202fG, vi\u1ec7c qu\u1ea3n l\u00fd nhi\u1ec7t hi\u1ec7u qu\u1ea3 l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng. <\/span><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/472016.htm\">LQD-CW400-LR4C<\/a><span class=\"qc-p1-tag\">, c\u1ee7a LINK\u2011PP, v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh, h\u1ed7 tr\u1ee3 m\u1ee9c ti\u00eau t\u00e1n c\u00f4ng su\u1ea5t t\u1ed1i \u0111a kho\u1ea3ng ~12\u202fW v\u00e0 s\u1eed d\u1ee5ng thi\u1ebft k\u1ebf \u0111\u1ea7u n\u1ed1i SMT d\u1ea1ng n\u1eafp ph\u1eb3ng, <\/span>\u0111\u01b0\u1ee3c trang b\u1ecb t\u1ea3n nhi\u1ec7t d\u1ea1ng n\u1eafp ph\u1eb3ng v\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi lu\u1ed3ng kh\u00ed trong c\u00e1c khe c\u1eafm m\u1eadt \u0111\u1ed9 cao<span class=\"qc-p1-tag\">. Nh\u1eefng t\u00ednh n\u0103ng n\u00e0y gi\u00fap duy tr\u00ec hi\u1ec7u n\u0103ng \u1ed5n \u0111\u1ecbnh d\u01b0\u1edbi t\u1ea3i l\u00e0m vi\u1ec7c n\u1eb7ng.<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >Ti\u00eau chu\u1ea9n &amp; kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">QSFP\u2011DD tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n <strong>Nh\u00f3m li\u00ean minh \u0111\u1eb7c t\u1ea3 QSFP-DD (QSFP-DD MSA)<\/strong> v\u00e0 IEEE <strong>3bs<\/strong> and <strong>3cd<\/strong> , h\u1ed7 tr\u1ee3 giao di\u1ec7n \u0111i\u1ec7n <strong>400GAUI-8<\/strong> \u2014 m\u1ed9t giao th\u1ee9c truy\u1ec1n t\u00edn hi\u1ec7u PAM4 8 k\u00eanh, m\u1ed7i k\u00eanh 50\u202fGbps, \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111\u00f3ng khung Ethernet 400G. M\u1eb7c d\u00f9 h\u1ed7 tr\u1ee3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi c\u00e1c thi\u1ebft b\u1ecb 100\/200\/400\u202fG th\u00f4ng qua b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ho\u1eb7c c\u00e1p ph\u00e2n nh\u00e1nh. S\u1ef1 linh ho\u1ea1t n\u00e0y gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a tri\u1ec3n khai v\u00e0 n\u00e2ng c\u1ea5p t\u1eebng b\u01b0\u1edbc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >D\u00f2ng s\u1ea3n ph\u1ea9m LINK\u2011PP LQD\u2011CW400: Tri\u1ec3n khai th\u1ef1c t\u1ebf<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"449\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/78a38ff8848244188566f979d642ee22.webp\" alt=\"400G QSFP\u2011DD Optical Modules\" class=\"wp-image-5737\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/78a38ff8848244188566f979d642ee22.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/78a38ff8848244188566f979d642ee22-300x112.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/78a38ff8848244188566f979d642ee22-1024x383.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/78a38ff8848244188566f979d642ee22-768x287.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/78a38ff8848244188566f979d642ee22-18x7.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">LINK\u2011PP cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 c\u00e1c <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26045-400g-qsfp-dd-osfp-qsfp112-page1.htm?ca=1435,1454&amp;cv=7969,8282\">m\u00f4-\u0111un quang h\u1ecdc 400G QSFP\u2011DD<\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>LQD-CW400-DR4C<br><\/strong> \u2013 M\u00f4-\u0111un QSFP-DD \u0111i\u1ec1u ch\u1ebf PAM4, ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u00e1p quang \u0111\u01a1n mode (SMF) v\u1edbi kho\u1ea3ng c\u00e1ch 500\u202fm, h\u1ed7 tr\u1ee3 4\u00d7100G-DR;<\/p><\/li><li><p><strong>LQD-CW400-FR4C<\/strong> \u2013 Kho\u1ea3ng c\u00e1ch 2\u202fkm tr\u00ean c\u00e1p quang \u0111\u01a1n mode (SMF) v\u1edbi \u0111\u1ea7u n\u1ed1i LC \u0111\u00f4i;<\/p><\/li><li><p><strong>LQD-CW400-LR4C<\/strong> \u2013 Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a l\u00ean \u0111\u1ebfn 10\u202fkm, s\u1eed d\u1ee5ng quang h\u1ecdc CWDM t\u1ea1i b\u01b0\u1edbc s\u00f3ng 1310\u202fnm <\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 giao th\u1ee9c CMIS 4.0, gi\u00e1m s\u00e1t quang h\u1ecdc k\u1ef9 thu\u1eadt s\u1ed1 v\u00e0 ho\u1ea1t \u0111\u1ed9ng trong d\u1ea3i nhi\u1ec7t \u0111\u1ed9 t\u1eeb 0\u202f\u00b0C \u0111\u1ebfn 70\u202f\u00b0C v\u1edbi m\u1ee9c ti\u00eau th\u1ee5 c\u00f4ng su\u1ea5t \u0111i\u1ec3n h\u00ecnh d\u01b0\u1edbi 10\u202fW. M\u1eabu th\u1eed mi\u1ec5n ph\u00ed v\u00e0 h\u1ed7 tr\u1ee3 t\u00edch h\u1ee3p OEM s\u1eb5n c\u00f3 th\u00f4ng qua c\u1eeda h\u00e0ng ch\u00ednh th\u1ee9c c\u1ee7a LINK\u2011PP t\u1ea1i <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/\">l\u2011p.com<br><\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u1ee8ng d\u1ee5ng &amp; l\u1ee3i \u00edch<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Trung t\u00e2m d\u1eef li\u1ec7u &amp; ki\u1ebfn tr\u00fac Spine\u2013Leaf<\/strong>: C\u00e1c k\u1ebft n\u1ed1i 400\u202fG m\u1eadt \u0111\u1ed9 cao t\u1ed1i \u01b0u h\u00f3a c\u1ea3 kh\u00f4ng gian l\u1eabn hi\u1ec7u n\u0103ng.<\/p><\/li><li><p><strong>C\u00e1c c\u1ee5m HPC &amp; AI<\/strong>: \u0110\u1ed9 tr\u1ec5 th\u1ea5p v\u00e0 th\u00f4ng l\u01b0\u1ee3ng cao l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t cho hu\u1ea5n luy\u1ec7n v\u00e0 m\u00f4 ph\u1ecfng.<\/p><\/li><li><p><strong>Fronthaul &amp; v\u1eadn chuy\u1ec3n 5G<\/strong>: C\u00e1c m\u00f4-\u0111un FR4 v\u00e0 DR4 h\u1ed7 tr\u1ee3 c\u00e1c kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft \u0111\u00e1ng tin c\u1eady trong m\u1ea1ng \u0111\u00f4 th\u1ecb.<\/p><\/li><li><p><strong>Quy m\u00f4 \u0111\u00e1m m\u00e2y &amp; k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u (DCI)<\/strong>: Giao di\u1ec7n m\u1edf r\u1ed9ng quy m\u00f4 trong m\u00f4i tr\u01b0\u1eddng khu\u00f4n vi\u00ean v\u00e0 \u0111\u00f4 th\u1ecb.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un n\u00e0y mang l\u1ea1i <strong>m\u1eadt \u0111\u1ed9 c\u1ed5ng g\u1ea5p \u0111\u00f4i so v\u1edbi th\u1ebf h\u1ec7 tr\u01b0\u1edbc<\/strong>, kh\u1ea3 n\u0103ng n\u00e2ng c\u1ea5p li\u1ec1n m\u1ea1ch l\u00ean <strong>800\u202fG<\/strong>, and <strong>kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c r\u1ed9ng r\u00e3i<\/strong> v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng 100G\/200G hi\u1ec7n h\u1eefu th\u00f4ng qua c\u00e1c gi\u1ea3i ph\u00e1p ph\u00e2n nh\u00e1nh ho\u1eb7c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>400\u202fG QSFP\u2011DD<\/strong> gi\u1edd \u0111\u00e2y \u0111\u00e3 tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n d\u1eabn \u0111\u1ea7u cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng th\u1ebf h\u1ec7 ti\u1ebfp theo. Thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn, \u0111i\u1ec1u ch\u1ebf PAM4, c\u00e1c l\u1ef1a ch\u1ecdn quang h\u1ecdc \u0111a d\u1ea1ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i mang l\u1ea1i hi\u1ec7u n\u0103ng ch\u01b0a t\u1eebng c\u00f3 trong c\u00e1c \u1ee9ng d\u1ee5ng trung t\u00e2m d\u1eef li\u1ec7u, HPC, AI v\u00e0 vi\u1ec5n th\u00f4ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p \u0111ang chu\u1ea9n b\u1ecb chuy\u1ec3n \u0111\u1ed5i sang m\u1ea1ng 400\u202fG, <strong>d\u00f2ng s\u1ea3n ph\u1ea9m LINK\u2011PP LQD\u2011CW400<\/strong> cung c\u1ea5p m\u1ed9t danh m\u1ee5c c\u00e1c <strong>m\u00f4-\u0111un tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n<\/strong>, <strong>\u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c<\/strong> \u2014 t\u1eeb SR \u0111\u1ebfn LR4 \u2014 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u00edch h\u1ee3p tr\u01a1n tru v\u00e0o c\u00e1c h\u1ec7 sinh th\u00e1i hi\u1ec7n c\u00f3. H\u00e3y truy c\u1eadp <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/\">c\u1eeda h\u00e0ng ch\u00ednh th\u1ee9c c\u1ee7a LINK\u2011PP<\/a> \u0111\u1ec3 xem b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt s\u1ea3n ph\u1ea9m, y\u00eau c\u1ea7u b\u00e1o gi\u00e1 ho\u1eb7c y\u00eau c\u1ea7u m\u1eabu \u0111\u00e1nh gi\u00e1 mi\u1ec5n ph\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 c\u00f4ng ngh\u1ec7 \u0111\u1eb1ng sau b\u1ed9 thu ph\u00e1t 400\u202fG QSFP\u2011DD, bao g\u1ed3m y\u1ebfu t\u1ed1 h\u00ecnh d\u1ea1ng, \u0111i\u1ec1u ch\u1ebf, l\u00e0n quang v\u00e0 thi\u1ebft k\u1ebf t\u1ea3n nhi\u1ec7t. <\/p>","protected":false},"author":1,"featured_media":5738,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[17,26],"class_list":["post-5739","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-400g-optical-modules","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5739","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=5739"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5739\/revisions"}],"predecessor-version":[{"id":10685,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5739\/revisions\/10685"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5738"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5739"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5739"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}