{"product_id":"zk-wan-lan-tcp-ip-c4-series-rfid-card-reader-access-control-panel","title":"ZK WAN\/LAN TCP IP C4 Series RFID Card Reader Access Control Panel","description":"\u003cp\u003eIn this review of the ZK WAN\/LAN TCP\/IP C4 Series Professional RFID Card Reader Access Control Panel C4-100 the bottom line is clear: this unit is built for administrators who need a robust, networked one-door access controller that handles both EM and IC cards plus PIN entry. The reviewer found it straightforward to integrate with LAN environments, reports reliable card handling, and appreciates the support for server-side control and uploads. It is best for small to medium installations that need a high card capacity and standard relay outputs rather than for installers who require biometric or multi-door native control.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eWAN\/LAN TCP\/IP connectivity:\u003c\/strong\u003e Allows centralized management and remote control through servers for convenient access logging and door operations.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMultiple credential support:\u003c\/strong\u003e Accepts EM cards, IC cards and password verification so sites can mix credential types for flexibility.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHigh card capacity:\u003c\/strong\u003e Stores up to 30,000 cards on the front-end and up to 100,000 in controller memory for large user bases.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eIntegrated access logic:\u003c\/strong\u003e Front-end reader collection and back-end controller comparison reduce network traffic and keep verification responsive.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eBasic I O for door control:\u003c\/strong\u003e Includes exit button support, one auxiliary input and one auxiliary output plus an electric lock relay for common door hardware.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEmbedded Linux and software support:\u003c\/strong\u003e Runs an embedded Linux system and works with ZKAccess3.5 and E-ZKEco Pro LAN software for management and reporting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe C4-100 is aimed at installers and site administrators managing single-door access in offices, retail backrooms or small campus buildings who need a compact networked controller with large card capacity and reliable TCP\/IP communication. It is a practical choice where EM or IC card systems and PINs are the primary credentials and server-side control is preferred.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for projects that require native support for multiple doors from one controller, built-in biometric reading, or integrated PoE power. Buyers who need multi-door native controllers or advanced local analytics should evaluate other models first.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eSolid TCP\/IP support enables centralized management and remote operation of door locks and gates.\u003c\/li\u003e\n \u003cli\u003eLarge card capacity supports growing user bases without immediate hardware upgrades.\u003c\/li\u003e\n \u003cli\u003eFlexible credential handling with EM, IC and password verification covers common access scenarios.\u003c\/li\u003e\n \u003cli\u003eIncludes standard I O like exit button and relay output for typical door hardware integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eNo native multi-door control in a single unit, so larger deployments need additional controllers.\u003c\/li\u003e\n \u003cli\u003ePower is 12V DC requiring an appropriate supply; PoE is not supported.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eC4-100\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC (20%)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e3A\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eIdentification methods\u003c\/td\u003e\n\u003ctd\u003eEM card, IC card, Password\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eOperating system\u003c\/td\u003e\n\u003ctd\u003eEmbedded Linux system\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eStorage\u003c\/td\u003e\n\u003ctd\u003e256MB Flash\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCard capacity\u003c\/td\u003e\n\u003ctd\u003e30,000 front-end \/ 100,000 controller\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eAccess control\u003c\/td\u003e\n\u003ctd\u003eOne-door; 2 card readers connected\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eAux I O\u003c\/td\u003e\n\u003ctd\u003e1 auxiliary input, 1 auxiliary output, 1 exit button\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eTCP\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe ZK C4-100 is a pragmatic, value-oriented single-door networked controller that suits small and medium sites needing high card capacity and reliable TCP\/IP management. It is recommended for administrators who want straightforward EM\/IC\/PIN support and server-side control, but installers should note the lack of PoE and multi-door native capability when planning larger systems.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit be managed over a LAN?\u003c\/strong\u003e\u003cbr\u003eYes, it supports TCP\/IP WAN\/LAN connectivity and integrates with ZKAccess3.5 and E-ZKEco Pro LAN software for remote management.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many cards can it store?\u003c\/strong\u003e\u003cbr\u003eIt supports 30,000 cards for front-end reader collection and up to 100,000 in controller storage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it support biometric readers or PoE?\u003c\/strong\u003e\u003cbr\u003eNo, it handles EM and IC cards plus passwords and requires 12V DC power; biometric or PoE support is not provided.\u003c\/p\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":48179588399323,"sku":"B0DLKH3VZL","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51yOg7n5zTL._AC_SL1000.jpg?v=1769696366","url":"https:\/\/gearmusthave.com\/products\/zk-wan-lan-tcp-ip-c4-series-rfid-card-reader-access-control-panel","provider":"GearMustHave","version":"1.0","type":"link"}