{"product_id":"aten-us421a-4-port-usb-2-0-peripheral-switch","title":"ATEN US421A 4-Port USB 2.0 Peripheral Switch","description":"\u003cdiv\u003e\n\u003cstyle\u003e\n.pd-acc { border: 1px solid #e2e2e2; border-radius: 8px; margin: 10px 0; overflow: hidden; }\n.pd-acc summary { cursor: pointer; padding: 14px 16px; font-weight: 700; font-size: 1.05em; list-style: none; display: flex; justify-content: space-between; align-items: center; background: #f7f7f7; }\n.pd-acc[open] \u003e summary { border-bottom: 1px solid #e2e2e2; }\n.pd-acc summary::-webkit-details-marker { display: none; }\n.pd-acc summary::after { content: \"+\"; font-size: 1.4em; font-weight: 400; line-height: 1; margin-left: 12px; }\n.pd-acc[open] \u003e summary::after { content: \"\\2212\"; }\n.pd-acc .pd-acc-body { padding: 8px 16px 14px; }\n.pd-spec, .pd-spec tr, .pd-spec td { border: none !important; background: transparent !important; }\n.pd-spec { width: 100%; border-collapse: collapse !important; margin: 6px 0 18px; }\n.pd-spec td { padding: 7px 10px 7px 0 !important; border-bottom: 1px solid #ececec !important; vertical-align: top; font-size: 0.95em; text-align: left; }\n.pd-spec td:first-child { width: 38%; font-weight: 600; color: #333; }\n.pd-spec tr:last-child td { border-bottom: none !important; }\n.pd-video { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; margin: 10px 0 18px; }\n.pd-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }\n\u003c\/style\u003e\n\u003ch2\u003eATEN US421A 4-Port USB 2.0 Peripheral Switch - 2 Years Local Warranty\u003c\/h2\u003e\n\u003ch3\u003eShare One Printer Between Four Computers\u003c\/h3\u003e\n\u003cp\u003eThe US421A lets 4 computers share a single USB 2.0 device – most often a printer, multifunction printer, scanner or external drive – without a print server or network setup.\u003c\/p\u003e\n\u003ch3\u003eThree Ways to Switch\u003c\/h3\u003e\n\u003cp\u003eSelect the active computer with the pushbuttons, with the software utility, or let Auto Switch hand the device to whichever computer sends a job. A buzzer confirms each switch.\u003c\/p\u003e\n\u003ch3\u003eMultifunction Printer Support\u003c\/h3\u003e\n\u003cp\u003ePrint, scan and fax functions of multifunction printers are supported, with USB 2.0 transfer rates of up to 480 Mbps.\u003c\/p\u003e\n\u003ch3\u003eBus-Powered and Hot-Pluggable\u003c\/h3\u003e\n\u003cp\u003eNo power adapter is needed. The US421A draws power from USB, has overcurrent protection and is hot-pluggable, and works with Windows and Mac.\u003c\/p\u003e\n\u003cp\u003eSharing printers across several small offices or counters? Email sales@sourceit.com.sg for volume pricing and delivery lead time.\u003c\/p\u003e\n\u003cdetails class=\"pd-acc\"\u003e\u003csummary style=\"cursor: pointer; font-weight: 700;\"\u003eATEN US421A Datasheet — Technical Specifications\u003c\/summary\u003e\u003cdiv class=\"pd-acc-body\"\u003e\n\u003ch3\u003eGeneral\u003c\/h3\u003e\n\u003ctable class=\"pd-spec\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eATEN 4-Port USB 2.0 Peripheral Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eUS421A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrder Code\u003c\/td\u003e\n\u003ctd\u003eUS421A-AT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocal Warranty (Singapore)\u003c\/td\u003e\n\u003ctd\u003e2 years carry-in warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eConnectors\u003c\/h3\u003e\n\u003ctable class=\"pd-spec\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eComputer Connections\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComputer Ports\u003c\/td\u003e\n\u003ctd\u003e4 x USB Type-B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Port\u003c\/td\u003e\n\u003ctd\u003e1 x USB Type-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eOperation\u003c\/h3\u003e\n\u003ctable class=\"pd-spec\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Selection\u003c\/td\u003e\n\u003ctd\u003ePushbuttons, software, Auto Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLEDs\u003c\/td\u003e\n\u003ctd\u003eDevice: 1 (Orange); Selected: 4 (Green)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Indicator\u003c\/td\u003e\n\u003ctd\u003eBuzzer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB Standard\u003c\/td\u003e\n\u003ctd\u003eUSB 2.0, up to 480 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Systems\u003c\/td\u003e\n\u003ctd\u003eWindows and Mac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003ePower\u003c\/h3\u003e\n\u003ctable class=\"pd-spec\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003eUSB bus-powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eOvercurrent protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eEnvironmental\u003c\/h3\u003e\n\u003ctable class=\"pd-spec\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0–40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-20–60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e0–80% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003ePhysical\u003c\/h3\u003e\n\u003ctable class=\"pd-spec\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.10 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L x W x H)\u003c\/td\u003e\n\u003ctd\u003e10.40 x 7.96 x 2.20 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pd-acc\"\u003e\u003csummary style=\"cursor: pointer; font-weight: 700;\"\u003eCompatibility \u0026amp; Applications\u003c\/summary\u003e\u003cdiv class=\"pd-acc-body\"\u003e\n\u003ch3\u003eTypical Devices\u003c\/h3\u003e\n\u003cp\u003eUSB printers and multifunction printers, scanners, label printers, external drives and other single USB peripherals.\u003c\/p\u003e\n\u003ch3\u003eTypical Use\u003c\/h3\u003e\n\u003cp\u003eSmall offices, clinics, shop counters and home offices where 4 computers need one printer but a networked printer or print server is not practical.\u003c\/p\u003e\n\u003ch3\u003eSelection Tip\u003c\/h3\u003e\n\u003cp\u003eThe US421A shares one device. To share a full keyboard, mouse and printer set between two computers, look at the US224 or US4224 instead; for two computers, choose the US221A.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pd-acc\"\u003e\u003csummary style=\"cursor: pointer; font-weight: 700;\"\u003ePackage Contents \u0026amp; ATEN USB Peripheral Switch Ordering Information\u003c\/summary\u003e\u003cdiv class=\"pd-acc-body\"\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003e1 x US421A 4-Port USB 2.0 Peripheral Switch, 1 x USB Type-A to USB Type-B cable (1.8 m), 1 x user instructions.\u003c\/p\u003e\n\u003ch3\u003eATEN USB Peripheral Sharing Switch Models\u003c\/h3\u003e\n\u003ctable class=\"pd-spec\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eKey feature\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS221A\u003c\/td\u003e\n\u003ctd\u003e2 computers share 1 USB 2.0 device\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS421A (this listing)\u003c\/td\u003e\n\u003ctd\u003e4 computers share 1 USB 2.0 device\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS224\u003c\/td\u003e\n\u003ctd\u003e2 computers share 4 USB 2.0 devices, remote port selector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS4224\u003c\/td\u003e\n\u003ctd\u003e2 computers share 4 USB 2.0 devices, compact essentials design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS4324\u003c\/td\u003e\n\u003ctd\u003e2 computers share 4 USB 3.2 Gen 1 devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pd-acc\"\u003e\u003csummary style=\"cursor: pointer; font-weight: 700;\"\u003eDatasheet \u0026amp; Downloads\u003c\/summary\u003e\u003cdiv class=\"pd-acc-body\"\u003e\n\u003ctable class=\"pd-spec\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDatasheet\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/assets.aten.com\/product\/spec_sheet\/us221a_421a_usb_peripheral_switche_ss_en.pdf\" target=\"_blank\" rel=\"noopener\"\u003eUS221A \/ US421A Datasheet (PDF)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser manual\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/assets.aten.com\/product\/manual\/us221a-us421a-user-manual-w.pdf\" target=\"_blank\" rel=\"noopener\"\u003eUS221A \/ US421A User Manual (PDF)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuick start guide\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/assets.aten.com\/product\/quick_start_guide\/US221A-US421A-2-4-Port-USB-2.0-Peripheral-Switch-qsg.pdf\" target=\"_blank\" rel=\"noopener\"\u003eUS221A \/ US421A Quick Start Guide (PDF)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eATEN product page\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.aten.com\/global\/en\/products\/usb-solutions\/docks-and-switches\/us421a\/\" target=\"_blank\" rel=\"noopener\"\u003eUS421A on aten.com\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eNeed a PDF sent directly? Email \u003cstrong\u003esales@sourceit.com.sg\u003c\/strong\u003e quoting \u003cstrong\u003eUS421A-AT\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pd-acc\"\u003e\u003csummary style=\"cursor: pointer; font-weight: 700;\"\u003eFrequently Asked Questions — ATEN US421A\u003c\/summary\u003e\u003cdiv class=\"pd-acc-body\"\u003e\n\u003ch3\u003eDo I need a print server?\u003c\/h3\u003e\n\u003cp\u003eNo. The US421A connects the printer directly to 4 computers by USB and switches between them.\u003c\/p\u003e\n\u003ch3\u003eWhat is Auto Switch?\u003c\/h3\u003e\n\u003cp\u003eAuto Switch passes the shared device to the computer that needs it, so print jobs can be sent without pressing the button first.\u003c\/p\u003e\n\u003ch3\u003eDoes it support multifunction printers?\u003c\/h3\u003e\n\u003cp\u003eYes. ATEN lists multifunction printer support.\u003c\/p\u003e\n\u003ch3\u003eHow many cables are included?\u003c\/h3\u003e\n\u003cp\u003eOne 1.8 m USB Type-A to Type-B cable is supplied. Additional cables are needed for the other computers.\u003c\/p\u003e\n\u003ch3\u003eDoes it need a power adapter?\u003c\/h3\u003e\n\u003cp\u003eNo. It is USB bus-powered.\u003c\/p\u003e\n\u003ch3\u003eWhat warranty do I get?\u003c\/h3\u003e\n\u003cp\u003e2 years local carry-in warranty. Supplied by SourceIT with a GST invoice.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e","brand":"ATEN","offers":[{"title":"Default Title","offer_id":53844753612964,"sku":"US421A-AT","price":84.64,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/0136\/0804\/files\/aten-us421a-1.jpg?v=1791081334","url":"https:\/\/sourceit.com.sg\/products\/aten-us421a-4-port-usb-2-0-peripheral-switch","provider":"SourceIT ","version":"1.0","type":"link"}