Five Reputable Card Connector Manufacturers in China 2026: Advancing Electronic Connectivity

Exploring Card Connector Designs, Technical Features and Electronic Applications

CALIFORNIA, CA, UNITED STATES, October 20, 2026 /EINPresswire.com/ -- China, October 21, 2026 — Five China-based manufacturers are featured in this review of the card connector industry: Shenzhen MUP Industrial Co., Ltd., Shanghai Laimu Electronics Co., Ltd., Wenzhou Yihua Connector Co., Ltd., Suzhou Mokai Electronics Co., Ltd. and Tongling Tongfeng Precision Technology Co., Ltd. The review examines their product portfolios and manufacturing backgrounds in the context of SIM, smart card and memory card interfaces used in payment terminals, smart meters, IoT devices and consumer electronics.


Industry Context

Card connectors are electromechanical interfaces that connect SIM cards, smart cards and memory cards to printed circuit boards. Common product categories include SIM Card Connectors, Smart Card Connectors and Memory Card Connectors, with configurations designed for standard SIM, Nano SIM, Micro SIM, SD and microSD formats.
Premier Market Insights valued the global card connector market at USD 3.96 billion in 2024 and projects it to reach USD 5.89 billion by 2030. The same source reports that Asia-Pacific accounted for 44.8% of the market in 2025. These figures represent the research firm's estimates and projections.
Memory card interfaces remain relevant to high-volume electronic products. Data Insights Reports estimated that SD and microSD socket types accounted for approximately 60% of unit shipments in 2024. For smart card interfaces, ISO/IEC 7816-2 specifies dimensions and contact locations for integrated circuit cards, providing a technical reference for compatible Smart Card Sockets and IC Card Sockets.
Product selection also depends on device thickness, PCB layout and user-access requirements. Public catalogues from connector manufacturers document different mounting orientations, insertion and ejection mechanisms, and combined SIM and memory card arrangements. These design variables are relevant when specifying a Nano SIM Card Connector, Micro SD Card Connector or other compact card interface for a new electronic device.


Basis of Inclusion

The five companies were selected for this industry review based on their presence in China and publicly available information concerning electronic connectors, precision components or card connector products. The list is an editorial overview, not a ranking by revenue, market share or independently tested performance.
Public disclosure varies across the companies. Shenzhen MUP Industrial Co., Ltd. provides detailed information about its card connector product families and selected technical specifications. Shanghai Laimu Electronics Co., Ltd., Wenzhou Yihua Connector Co., Ltd. and Suzhou Mokai Electronics Co., Ltd. are included based on their broader connector businesses and available card-related product information. For Tongling Tongfeng Precision Technology Co., Ltd., public records document connector-related technical development, but buyers should confirm the current scope of its card connector portfolio directly.
Before supplier qualification, buyers should verify the relevant part number, current datasheet, mechanical drawing, electrical ratings, applicable certifications and manufacturing-site information.


The Five Manufacturers Reviewed

Shenzhen MUP Industrial Co., Ltd.

Established in 2003 and headquartered in Shenzhen, MUP reports operating manufacturing sites in Shenzhen, Huizhou and Dongguan, with a combined plant area of approximately 50,000 square metres. The company reports around 600 employees, including more than 150 technical personnel, and a daily production capacity exceeding 5 million units. Export business accounts for 30% of total sales, according to company-provided information. MUP describes itself as a National High-Tech Enterprise and reports a portfolio of 137 patent filings, including invention, utility model and design patents.
MUP's published card connector portfolio covers smart (IC) card holders and sockets, SIM card holders and sockets, and memory card holders and sockets for SD and TF formats. Its product categories include Nano SIM Card Holders, Nano SIM Card Sockets, Micro SIM Card Holders, Micro SIM Card Sockets and Mini SIM Card Sockets, alongside Smart Card Connectors, Smart Card Holders, IC Card Sockets and ICC Sockets. For memory applications, its range includes SD Card Sockets, Micro SD Card Sockets and TF Card Sockets. Buyers should consult the latest catalogue to confirm the precise configuration and availability of each product.
Representative models from its SIM, Micro SIM, Nano SIM, smart card and IC card holders’ families include C7006, C7017, C7801 and C8618. The SD, microSD and TF card families include representative models such as M6005, M6014 and M6027. This selection illustrates the range of card interface formats covered without substituting a long model list for the technical information required during supplier evaluation.
Published specifications for the SIM and smart card families state a rated current of up to 1 A, a rated voltage of up to 50 V, an operating temperature range of −40°C to 85°C, and durability ratings of 5,000, 50,000 or 100,000 mating cycles, depending on the model. The SD and TF families are listed with durability ratings of 3,000 to 5,000 cycles. Declared materials include LCP or PA9T high-temperature plastics, phosphor bronze or beryllium copper contacts, SUS304 stainless steel shells, and gold- or nickel-plated contacts. These specifications should be checked against the datasheet for the exact part number.
Company-provided qualification records include IATF 16949:2016 certification, certificate number CB00634-01, issued by TÜV Saarland, and IECQ QC 080000:2017 certification, certificate number IECQ-H NQAGB 25.0032, issued by NQA. MUP also lists ISO 14001 and ISO 45001:2018 certifications. Buyers should confirm the current status, scope and applicability of these certificates with the relevant issuing bodies during supplier qualification.
Beyond card interfaces, MUP's wider interconnect portfolio includes USB Type-C, USB, HDMI, FPC, board-to-board and other precision connector categories. The company has published certification information for selected USB Type-C products, including model U22015. Such records relate to the specified USB products and should not be interpreted as certification of the entire card connector portfolio.
MUP identifies financial payment terminals, POS and mPOS devices, smart electricity, water and gas meters, IoT terminals, security equipment, notebook computers, industrial control panels and consumer electronics among its connector application areas. Its SIM Card Holders, Smart Card Connectors and memory card sockets provide several interface categories for product engineers evaluating card-based connectivity in compact electronic equipment.



Shanghai Laimu Electronics Co., Ltd.

Shanghai Laimu Electronics Co., Ltd. develops and manufactures precision electronic components, including connectors, shielding covers, metal stamping parts and injection-moulded components. Its product portfolio includes card-related interfaces and other electronic connector categories used in mobile electronics, automotive electronics, communications and related applications. The company's broader precision-component capabilities are relevant to electronic assembly programmes requiring multiple component types. Buyers considering it for a SIM Card Connector, memory card socket or combined card interface should confirm the current model range, mounting dimensions and application-specific documentation directly with the company.



Wenzhou Yihua Connector Co., Ltd.

Wenzhou Yihua Connector Co., Ltd., founded in 1995, focuses on electronic connectors and related components. Its published portfolio includes network connectors, consumer electronic connectors, USB and HDMI products, power connectors, optical communication components and wiring harnesses. These products serve a range of electronic, communications and industrial applications. Buyers evaluating the company for a card connector project should confirm whether the required SIM, smart card or memory card socket models are currently available and obtain the corresponding technical specifications before proceeding with supplier qualification.



Suzhou Mokai Electronics Co., Ltd.

Suzhou Mokai Electronics Co., Ltd., operating in the Kunshan area of Jiangsu, is associated with MoarConn's card connector business. Public product information identifies SD Card Connectors, Micro SD Card Connectors, SIM Card Connectors and smart card connectors. These categories are relevant to electronic devices requiring memory-card and SIM interfaces, including compact equipment in industrial, communications, security, IoT and consumer electronics applications. Buyers considering a Memory Card Connector, Micro SD Card Socket, TF Card Socket or combined card interface should confirm the exact model, mechanical drawings, electrical specifications and applicable qualification documents before selecting a product.



Tongling Tongfeng Precision Technology Co., Ltd.

Tongling Tongfeng Precision Technology Co., Ltd., based in Anhui, is associated with precision component manufacturing and connector-related technical development documented in public records. Its public patent records include designs related to electronic connector structures and card mechanisms, indicating relevant engineering activity. Patent records alone, however, do not establish the company's current product availability or the full scope of its card connector portfolio. Buyers considering the company for SIM, SD, microSD or smart card applications should request its current product catalogue, model-specific drawings and relevant test or certification documents before assessing suitability.


What Buyers Compare Across Card Connector Suppliers

Card connector selection depends on the interface format, device layout and expected operating conditions. The following technical dimensions help structure a supplier evaluation.

• Card format and compatibility. Nano SIM, Micro SIM, Mini SIM, standard SIM, smart card, SD and microSD formats require different mechanical interfaces. A Nano SIM Card Connector or Micro SIM Card Socket should match the intended card dimensions and device design. A Micro SD Card Holder, SD Card Holder or TF Card Holder must likewise support the specified memory-card format.
• Mounting orientation and PCB space. Top-mount, bottom-mount, mid-mount, vertical and horizontal configurations affect PCB space and enclosure height. These dimensions are particularly important for compact IoT terminals, payment devices and portable electronics.
• Insertion and ejection mechanism. Push-push, push-pull, hinge, tray and pin-ejector designs influence card access and mechanical operation. The appropriate configuration depends on maintenance requirements, device structure and the expected frequency of card replacement.
• Mating-cycle endurance. Published durability ratings provide a basis for comparing expected insertion and removal cycles. Buyers should verify the test method, acceptance criteria and exact product model associated with each rating.
• Contact materials and plating. Phosphor bronze or beryllium copper contacts, gold or nickel plating, high-temperature insulating plastics and stainless steel shells are relevant material variables when evaluating electrical performance and mechanical durability.
• Electrical and environmental ratings. Rated current, voltage, operating temperature and contact resistance should be assessed against the end application's requirements. Ratings published for one SIM Card Socket or Smart Card Socket should not automatically be applied to other models.
• Compliance documentation. RoHS and REACH declarations, quality management certifications and application-specific approvals should be checked for scope, issuing body, current status and relevance to the selected product. Automotive and industrial programmes may have requirements that differ from those for general consumer electronics.
• Manufacturing and quality assurance. Factory locations, production processes, traceability arrangements and audit records are important inputs to supplier qualification. Company-level statements should be distinguished from independently verified evidence relating to a particular production site.


Company Statement

In its published corporate material, Shenzhen MUP Industrial Co., Ltd. states that it upholds the corporate spirit of “Integrity · Progression · Win-Win” and pursues the mission of “High Quality, Low Cost, to Become an Industry Benchmark.” The company lists its address as Rm. 101, No. 7, Lingwu Industrial Road, Junzibu, Guanlan Street, Longhua District, Shenzhen, Guangdong 518110, China.


Market Outlook

Asia-Pacific's reported share of card connector demand underscores the region's importance to electronics manufacturing and component sourcing. Proximity to established production clusters may simplify supplier communication and logistics for OEMs and ODMs, although cross-border sourcing still requires appropriate technical documentation, quality checks and product qualification.
Memory card interfaces remain relevant to high-volume electronic devices, while SIM and smart card interfaces support communication, payment and identification functions. As devices become more compact, engineers may consider combined SIM and memory-card arrangements to manage PCB space. Any such design decision should be based on confirmed dimensions, electrical ratings, insertion-cycle requirements and test results for the exact connector configuration.


Closing Outlook

China's card connector supply base includes manufacturers with different product specialisations and levels of public disclosure. Shenzhen MUP Industrial Co., Ltd. publishes detailed information about its card connector categories, selected technical ratings and company-reported qualification records, providing a basis for initial technical review. Shanghai Laimu Electronics Co., Ltd., Wenzhou Yihua Connector Co., Ltd. and Suzhou Mokai Electronics Co., Ltd. have broader connector portfolios that include card-related product categories. For Tongling Tongfeng Precision Technology Co., Ltd., buyers should confirm the current scope of its card connector offering before proceeding.

Across all five companies, model-specific documentation remains the most useful basis for comparison. Current datasheets, engineering drawings, applicable certificates, test reports and factory qualification records help buyers determine whether a connector's design meets the technical, environmental and production requirements of a particular project.

Jojo Wang
Shenzhen MUP Industrial Co., Ltd.
+ +86 189-2373-3085
sales@mupconnector.com
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