{"id":9482121609474,"title":"TP-Link TL-SM321B 1000Base-BX WDM Bi-Directional SFP Module","handle":"tp-link-tl-sm321b-1000base-bx-wdm-bi-directional-sfp-module","description":"\u003cp\u003eThe TP-Link TL-SM321B is a 1000Base-BX WDM Bi-Directional SFP Module designed for high-speed networking over single-mode fiber. It uses Wavelength Division Multiplexing (WDM) technology to transmit and receive data over a single fiber strand, operating at wavelengths of 1310nm for transmission and 1550nm for reception. This module supports transmission distances of up to 10 kilometres, making it suitable for campus networks, enterprise infrastructure, and data centre applications.\u003c\/p\u003e\u003cp\u003eThe module features an LC duplex connector and is compatible with standard SFP ports on TP-Link and other networking devices. It delivers a 1Gbps data rate for stable and efficient performance in bandwidth-intensive tasks such as video streaming and data backup. The compact design ensures seamless integration into existing network setups.\u003c\/p\u003e\u003cp\u003eThis SFP module is a cost-effective solution for extending network reach while minimising infrastructure costs. It is backed by a 5-year local warranty and is an authorised reseller product with genuine components.\u003c\/p\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:auto;margin:0 0 1em\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003e1000Base-BX WDM Bi-Directional SFP Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eConnector\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eLC duplex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eWavelengths\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003e1310nm (Tx) \/ 1550nm (Rx)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eTransmission Distance\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eUp to 10 km\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eData Rate\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003e1 Gbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eFiber Type\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eSingle-mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eStandard SFP ports on TP-Link and other devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top\"\u003eApplications\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top\"\u003eCampus networks, enterprise infrastructure, fiber connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","published_at":"2026-07-02T12:51:14+08:00","created_at":"2026-07-02T12:51:12+08:00","vendor":"TP-Link","type":"","tags":["1000Base-BX","10km","bi-directional","Created by Product Upload","LC duplex","SFP module","single-mode fiber","TL-SM321B","TP-Link","WDM"],"price":4232,"price_min":4232,"price_max":4232,"available":true,"price_varies":false,"compare_at_price":5078,"compare_at_price_min":5078,"compare_at_price_max":5078,"compare_at_price_varies":false,"variants":[{"id":48068944429314,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"TL-SM321B","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"TP-Link TL-SM321B 1000Base-BX WDM Bi-Directional SFP Module","public_title":null,"options":["Default Title"],"price":4232,"weight":500,"compare_at_price":5078,"inventory_management":null,"barcode":"6935364030520","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/lioncityco.com\/cdn\/shop\/files\/tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b-458812.jpg?v=1782967874","\/\/lioncityco.com\/cdn\/shop\/files\/tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b-801775.jpg?v=1782967875","\/\/lioncityco.com\/cdn\/shop\/files\/tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b-111041.jpg?v=1782967874"],"featured_image":"\/\/lioncityco.com\/cdn\/shop\/files\/tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b-458812.jpg?v=1782967874","options":["Title"],"media":[{"alt":"TP-Link TL-SM321B 1000Base-BX WDM Bi-Directional SFP Module","id":39753568321794,"position":1,"preview_image":{"aspect_ratio":1.581,"height":511,"width":808,"src":"\/\/lioncityco.com\/cdn\/shop\/files\/tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b-458812.jpg?v=1782967874"},"aspect_ratio":1.581,"height":511,"media_type":"image","src":"\/\/lioncityco.com\/cdn\/shop\/files\/tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b-458812.jpg?v=1782967874","width":808},{"alt":"TP-Link TL-SM321B 1000Base-BX WDM Bi-Directional SFP Module","id":39753568354562,"position":2,"preview_image":{"aspect_ratio":1.581,"height":511,"width":808,"src":"\/\/lioncityco.com\/cdn\/shop\/files\/tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b-801775.jpg?v=1782967875"},"aspect_ratio":1.581,"height":511,"media_type":"image","src":"\/\/lioncityco.com\/cdn\/shop\/files\/tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b-801775.jpg?v=1782967875","width":808},{"alt":"TP-Link TL-SM321B 1000Base-BX WDM Bi-Directional SFP Module","id":39753568387330,"position":3,"preview_image":{"aspect_ratio":1.581,"height":511,"width":808,"src":"\/\/lioncityco.com\/cdn\/shop\/files\/tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b-111041.jpg?v=1782967874"},"aspect_ratio":1.581,"height":511,"media_type":"image","src":"\/\/lioncityco.com\/cdn\/shop\/files\/tp-link-1000base-bx-wdm-bi-directional-sfp-module-tl-sm321b-111041.jpg?v=1782967874","width":808}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eThe TP-Link TL-SM321B is a 1000Base-BX WDM Bi-Directional SFP Module designed for high-speed networking over single-mode fiber. It uses Wavelength Division Multiplexing (WDM) technology to transmit and receive data over a single fiber strand, operating at wavelengths of 1310nm for transmission and 1550nm for reception. This module supports transmission distances of up to 10 kilometres, making it suitable for campus networks, enterprise infrastructure, and data centre applications.\u003c\/p\u003e\u003cp\u003eThe module features an LC duplex connector and is compatible with standard SFP ports on TP-Link and other networking devices. It delivers a 1Gbps data rate for stable and efficient performance in bandwidth-intensive tasks such as video streaming and data backup. The compact design ensures seamless integration into existing network setups.\u003c\/p\u003e\u003cp\u003eThis SFP module is a cost-effective solution for extending network reach while minimising infrastructure costs. It is backed by a 5-year local warranty and is an authorised reseller product with genuine components.\u003c\/p\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:auto;margin:0 0 1em\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003e1000Base-BX WDM Bi-Directional SFP Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eConnector\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eLC duplex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eWavelengths\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003e1310nm (Tx) \/ 1550nm (Rx)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eTransmission Distance\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eUp to 10 km\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eData Rate\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003e1 Gbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eFiber Type\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eSingle-mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top;border-bottom:1px solid rgba(128,128,128,0.16);border-bottom:1px solid color-mix(in srgb,currentColor 12%,transparent)\"\u003eStandard SFP ports on TP-Link and other devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:0;padding:0.4em 0.75em 0.4em 0;opacity:0.65;vertical-align:top\"\u003eApplications\u003c\/td\u003e\n\u003ctd style=\"border:0;padding:0.4em 0;vertical-align:top\"\u003eCampus networks, enterprise infrastructure, fiber connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e"}