Mellanox MCX512A-Adat Dual-Port 25g Network Card Supporting Roce/Rdma/Ovs Offloading 10g Fiber Optic Server Adapter
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Product Highlights
- Dual-Port 25G Performance: Supports 25Gbps per port with 50Gbps dual-port aggregation for high throughput.
- Advanced Offloading Tech: Features RoCE/RDMA, OVS offloading, and NVMe over Fabric to reduce CPU usage.
- Multi-Rate Adaptability: Adapts to 25GbE, 10GbE, and 1GbE speeds for flexible network integration.
- High-Speed Data Processing: Delivers up to 200 million messages per second with 750ns latency.
- Hardware Acceleration: Includes T10-DIF signature switching and embedded PCIe switch for storage.
- DPDK Development Kit: Comes with DPDK support for optimized data plane development and performance.
- Passive Heat Dissipation: Uses fanless passive cooling design for silent and reliable operation.
- Broad Compatibility: Supports Ethernet and InfiniBand protocols for versatile data center applications.
Product Attributes
- Customization
- Available
- Type
- Wired
- Bandwidth
- 50g Dual Port
- Model NO.
- MCX512A-ADAT
- Interface
- PCI Express
- Transmission Rate
- Multi-Rate Adaptive for 25/10/1GB/S
- Application
- Server
- Connecting Medium
- Optical Fibre
- Motherboard Integrated
- Separate Network Card
- Frequency Range
- -
- Type of Network
- 10-Gigabit Ethernet
- Field
- Server
- Number of Ports
- Dual Ports (2× Qsfp28)
- Power Consumption
- 5-20W (Typical), Max. 30W
- Dissipate Heat
- Passive Heat Dissipation Without Fan
- Main Chip
- Connectx-5 Ex En
- Transport Package
- Paper Box
- Specification
- Original specification
- Trademark
- Mellanox
- Origin
- China
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Mellanox MCX512A-Adat Dual-Port 25g Network Card Supporting Roce/Rdma/Ovs Offloading 10g Fiber Optic Server Adapter
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Product Description



Type | Dual-port Fiber Optic NIC (Supports Ethernet & InfiniBand) |
Bandwidth | Single port 25Gbps, dual-port aggregation 50Gbps |
Interface | Dual SFP28/SFP+/SFP Optical Interfaces, PCIe 3.0/4.0 x8 Bus |
Speed | Multi-rate Adaptive (25GbE/10GbE/1GbE) |
Media | SFP28 Optical Modules or DAC/AOC Cables (Sold Separately) |
Integration | Non-integrated (PCIe Add-in Card, Requires Slot) |
Frequency | N/A (Wired Networking Device) |
Network | Ethernet (IEEE 802.3by/ae), InfiniBand (IBTA 1.3) |
Application | Data Centers, HPC, Cloud Computing, Storage Acceleration |
providesprofessional solutions for high-speed Internet access products and smarttelecommunications products.
others. Guided byour clients'demands, we also provide solutions for Brocade FC SAN,Nvidia InfiniBand and high-speed Ethernet.
With 16 years of experience in the industry and five years of export histo-ry, we value the client-centered principle and
sincerely serve every do-mestic and international client.





Our team has over 10 years of experience in AI server accessories and high-speed network solutions (FC SAN/InfiniBand/Ethernet), with deep industry expertise to deliver optimized solutions for various scenarios.
We maintain a stable supply chain with long-term partnerships with top manufacturers, ensuring sufficient stock and reliable lead times. We provide one-stop services including product selection, solution design and 24/7 after-sales support.
Benefiting from bulk purchasing, we offer highly cost-effective 100% original products at competitive prices.
2. Is the product brand new?
All products are 100% original and new. Official warranty is provided for authorized brands, and self-developed products pass strict quality inspection. Official verification is supported.
3. How long after payment will the goods be dispatched?
In-stock orders: Ship within 1–3 working days after payment confirmation; urgent orders are prioritized.
Out-of-stock/custom orders: Lead time depends on inventory or production, confirmed by customer service.
Delivery may be delayed during holidays. Please check with us before ordering.
4. Is customization acceptable? What is the MOQ?
Customization available for self-developed network cards, optical modules and high-speed cables.
MOQ: 50 pieces for basic customization; ≥200 pieces for complex specifications.
Authorized products only support original standard models, no customization.
Contact customer service for details.
5. Which payment methods and currencies are accepted?
We accept bank transfers (online or counter) to our corporate account.
Order number must be noted for payment verification.
Both RMB and USD are supported.
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI246786". Items marked "" are certified.
Company Profile
Beijing Hengzheng Tongchuang Technology Co., Ltd., founded in Beijing in 2009, is a senior provider in data communication and information security. With 16 years of experience, it serves government agencies, enterprises and multinationals, boasting a good reputation under the principle of "Quality First, Service Supreme".
Its main business covers R&D, production and sales of data communication hardware (network cards: Gigabit to 400G; Optical modules: 10G SFP+ to 800G QSFP-DD; High-speed cables: 400G transmission within 100m, 40% cost-saving vs traditional optical fibers; Switches: Industrial (IEC 61850 certified) and data center models, plus accessories), related technical support and information security solutions, with businesses in finance, energy, intelligent manufacturing and the Internet.
Its over 50-people professional team (core members with average 12+ years of experience) includes hardware R&D (LED by senior engineers from renowned tech firms, offering customized services), technical support and sales. It provides 7× 24 global response for support services.
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- East half floor, 2nd floor, Office Building, Long Xiang Zhi Ban Group, Huilongguan, Changping District, Beijing
-
Plant Area
- 452 square meters
-
Number of Employees
- 13
-
Registered Capital
- 11,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- Beijing Port
-
Minimum Order Quantity
- 1
-
Supply Chain Partners
- 10
Our Production Capability & Technical Expertise
-
Main Products
- Switches, Fiber optic cards, Network cards, Array cards, Optical modules, High-speed cables, Servers, Storage, Hard drives, GPUs
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 2 people
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2009-08-20
-
Export Year
- 4 Years
-
Main Markets
- Europe, Southeast Asia/ Mideast, Domestic
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 7
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- What are the network speeds supported by this card?
- The card supports multi-rate adaptive speeds including 25GbE, 10GbE, and 1GbE.
- Does this network card support RDMA and RoCE?
- Yes, it supports RoCE, RDMA, and OVS offloading to improve efficiency.
- Is this product brand new and original?
- Yes, all products are 100% original and new, with official warranty support.
- What is the warranty period for this product?
- We provide a 36-month warranty for all our products.
- How long is the lead time for shipping?
- In-stock orders ship within 1-3 working days; custom orders depend on production.
- Can I customize this network card?
- Customization is available for self-developed products with an MOQ of 50-200 pieces.
- What payment methods are accepted?
- We accept bank transfers in RMB or USD, with order numbers required for verification.
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US$150.00 / Piece
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