Nvidia Mellanox Connectx-5 En MCX545A-Ccun Single-Port 100gbe Qsfp28 Network Adapter
Contact Supplier
Product Highlights
- 100GbE High Performance: Single-port 100GbE QSFP28 adapter with up to 200 million messages per second throughput.
- Ultra-Low Latency: Delivers latency under 0.7 microseconds for InfiniBand and under 1 microsecond for RoCEv2.
- Hardware Acceleration: Features T10-DIF signature switching, NVMe over Fabrics offload, and embedded PCIe switch.
- CPU Efficiency: Advanced Open vSwitch offloading reduces CPU resource consumption and improves data center efficiency.
- Broad OS Compatibility: Supports Linux, Windows, VMware, and Kubernetes operating systems.
- Energy Efficient Design: Passive fanless cooling with typical power consumption of 18W and maximum of 25W.
- Advanced Protocol Support: Supports RDMA/RoCEv2, NVMe over Fabrics, and TCP/IP Offload for optimized data transfer.
- 36-Month Warranty: Comprehensive 36-month warranty coverage provided for all products by the manufacturer.
Product Attributes
- Customization
- Available
- Type
- Wired
- Bandwidth
- 100g
- Model NO.
- MCX545A-CCUN
- Interface
- PCI Express
- Transmission Rate
- 1/10/25/40/50/100gbe
- Application
- Server
- Connecting Medium
- Optical Fibre
- Motherboard Integrated
- Separate Network Card
- Frequency Range
- -
- Type of Network
- 10-Gigabit Ethernet
- Field
- Server
- Latency
- <0.7 μS (Infiniband), <1 μS (Rocev2)
- OS Support
- Linux, Windows, Vmware, Kubernetes
- Power Consumption
- Typical 18W, Max 25W
- Operating Temp
- 0°C to 55°C
- Form Factor
- Full-Height (with Lp/Fp Brackets)
- Transport Package
- Carton
- 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 Nvidia Mellanox Connectx-5 En MCX545A-Ccun Single-Port 100gbe Qsfp28 Network Adapter
Find Similar Products
Product Description



Basic information | |
model | MCX545A-CCUN |
brand | NVIDIA/Mellanox |
Main chip | ConnectX-5 EN |
Bus type | PCIe Gen3 x16 |
network performance | |
network protocol | Ethernet (100GbE), InfiniBand EDR |
Number of ports | Single-Port |
interface type | QSFP28 (Supports Optical & Copper) |
transmission speed | 100GbE (Full-Duplex) |
delay | ≤1 Microsecond |
Protocol and function | |
Advanced protocol support | RDMA/RoCEv2, NVMe over Fabrics, TCP/IP Offload |
hardware acceleration | Atomic Operations, Collective Offload, Congestion Control |
Physics and compatibility | |
power consumption | ≤15W Power Consumption |
Compatible operating system | Linux, Windows, VMware |
Heat dissipation design | Passive Cooling (Fanless) |
Application scenario | |
main application | Data Center Networking, AI Clusters, HPC, Cloud Servers |

Adaptive routing for reliable transmission
Burst buffer unloading for background checkpoints
NVMe over Fabric uninstall
Embedded PCIe
Enhanced vSwitch/vRouter uninstallation
Flexible pipeline
RoCE covering network
PCIe Gen 3.0 support
Meet RoHS standards
ODCC compatibility

Design of Innovative Rack for Storage and Machine Learning Based on Host Chain Technology
It is suitable for intelligent interconnection of x86, Power, ARM and GPU-based computing and storage platforms.
Advanced storage features, including NVMe over Fabric offload.
Intelligent network adapter supporting flexible pipeline programmability
Cutting-edge performance of virtualized networks, including network function virtualization (NFV)
Efficient I/O consolidation to reduce data center cost and complexity.
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 is the transmission speed and interface type?
- The adapter supports 100GbE transmission speed with a QSFP28 interface, compatible with both optical and copper mediums.
- Does this product support hardware acceleration?
- Yes, it includes hardware acceleration features such as T10-DIF signature switching, NVMe over Fabrics target offload, and embedded PCIe switch.
- What are the supported operating systems?
- The network adapter supports Linux, Windows, VMware, and Kubernetes operating systems.
- What is the power consumption of this adapter?
- The typical power consumption is 18W, with a maximum of 25W. It features passive cooling (fanless) design.
- Is customization available for this specific NVIDIA product?
- No, authorized products like this NVIDIA adapter only support original standard models and do not support customization. Customization is available only for self-developed network cards and cables.
- What is the warranty period for this product?
- We provide a 36-month warranty for all our products, including this network adapter.
- What payment methods are accepted?
- We accept bank transfers (online or counter) to our corporate account. Both RMB and USD currencies are supported.
Send your message to this supplier
People who viewed this also viewed
-
US$150.00 / Piece
Find Similar Products By Category
- Supplier Homepage
- Products
- Network Adapters
- Nvidia Mellanox Connectx-5 En MCX545A-Ccun Single-Port 100gbe Qsfp28 Network Adapter
Related Categories
Hot Searches
- Network Switch Factories
- Network Card Factories
- Mobile Card Factories
- Memory Card Factories
- Lan Network Card
- Network Adapter Card
- Network Ethernet Card
- Wired Network Card
- Network Pci Card
- 100gbe Network Card Bulkbuy