PCIe 6.0 / MCIO
PCIe 6.0 CEM to MCIO Cable
- Model
- T1070I7J12504
- Interface
- CEM 16X to MCIO 8X x2
- Speed
- 64 GT/s per lane (PCIe 6.0)
- Impedance
- 85Ω ±5%
- Use case
- NVIDIA H100/H200, AI training servers
High-Speed Interconnect Cable Manufacturer
High-Performance PCIe & Server Cables — Engineered for AI Infrastructure
Suntecc engineers PCIe 6.0/5.0, MCIO, SlimSAS and OCuLink cable assemblies for AI servers, GPU platforms and enterprise storage. Validated at 53 GHz with 85Ω/100Ω impedance control. 62 GB/s real-world bandwidth proven.
Since 1995
300+ skilled workers
500K+ monthly capacity
PCIe / SAS / storage interfaces
62
GB/s
Gen6 Ready
PCIe 6.0 CEM to MCIO 8X x2
Priority product family for AI server GPU and storage routing.
1995
TC&C founded in Taiwan
2007
Dongguan Suntecc factory
7-10 days
Typical sample lead time
100%
Electrical and visual inspection
53 GHz
High-frequency validation capability
Core High-Speed Products
PCIe, MCIO, SFF and OCuLink Cable Assemblies for Engineers
The page now prioritizes high-speed interconnects used in AI servers, storage backplanes and compact PCIe systems. Other product families remain available as secondary options and through the full Suntecc catalog.
PCIe 6.0
PCIe 6.0 Riser Cable
- Model
- T1070I4162502
- Interface
- Gen6 x16 riser
- Speed
- 64 GT/s, 16 lanes
- Length
- 150mm - 500mm (custom)
- Use case
- GPU servers, workstations
PCIe 5.0
PCIe 5.0 x16 GPU Riser Cable
- Model
- T1070H7162519
- Interface
- PCIe Gen5 x16
- Bandwidth
- 64 GB/s (16 lanes)
- Verified
- 3DMark: 62 GB/s (97%)
- Use case
- GPU, workstation, IPC
MCIO
MCIO 8X High-Speed Cable
- Model
- T1070H57425X3
- Interface
- MCIO 8X
- Impedance
- 85Ω / 100Ω
- Options
- Braided, side-bend
- Use case
- Dense servers, storage controllers
MCIO
MCIO 16X 124P Assembly
- Model
- T1070H5C425X1
- Interface
- MCIO 16X 124P
- Lanes
- 16 PCIe lanes
- Connector
- 124-pin high-density
- Use case
- AI backplane, storage systems
SlimSAS
SlimSAS SFF-8654 8X Cable
- Model
- T1070F57425X1
- Interface
- SFF-8654 8X
- Lanes
- 8 SAS/PCIe lanes
- Fanout
- SFF-8643, SATA, OCuLink
- Use case
- JBOD, RAID, NVMe enclosures
SFF-8639 U.2/U.3
SFF-8639 U.2/U.3 Storage Cable
- Model
- T1070E9681801
- Interface
- SFF-8639 to SFF-8643
- Protocol
- NVMe, SAS, SATA
- Hot-swap
- Supported
- Use case
- NVMe SSD, server storage
OCuLink
OCuLink 8611 PCIe Cable
- Model
- T1070G5421903
- Interface
- OCuLink 8611 4X
- Lanes
- 4 PCIe lanes
- Length
- 500mm - 2m (custom)
- Use case
- eGPU, industrial, external PCIe
12VHPWR
PCIe 5.0 12VHPWR 600W Cable
- Model
- AG-PW-8416M2-045
- Rating
- 16Pin, 600W, 16AWG
- Connector
- 12VHPWR (12+4 pin)
- Compatibility
- RTX 4090, RTX 5090
- Use case
- GPU power, custom builds
USB4
USB4 80G 240W Type-C Cable
- Model
- USB4 80G 8K
- Speed
- 80 Gbps (USB4 Gen4)
- Power
- 240W PD 3.1
- Display
- 8K@60Hz / 4K@120Hz
- Use case
- Docks, displays, workstations
Need SATA, USB, HDMI/DP, power cable or other connector products?
Open the full Suntecc product catalog for every product family and part number.
View All Products ↗
Engineer Selection Guide
Choose by Interface, System Role and Routing Constraint
A concise comparison helps engineers and sourcing teams decide which interface family should enter the RFQ first.
| Interface | Typical role | Common Suntecc options | Best for |
|---|---|---|---|
| PCIe 6.0 / 5.0 | GPU, accelerator and motherboard expansion routing | CEM to MCIO, x16 riser, custom length and angle | AI servers, GPU platforms, high-end workstations |
| MCIO 4X / 8X / 16X | Compact high-density internal PCIe routing | 85/100 ohm designs, 124P/148P, straight or side-bend | Dense servers, storage controllers, backplanes |
| SFF-8654 / SlimSAS | Enterprise storage and multi-lane SAS/PCIe cabling | 4X/8X, SFF-8643, SATA fanout, OCuLink fanout | JBOD, RAID, NVMe storage enclosures |
| SFF-8639 U.2/U.3 | NVMe SSD drive connection | SFF-8639 to Mini-SAS HD, SATA power, braided options | Server SSD trays and storage systems |
| OCuLink 8611 | Compact PCIe 4X internal or external connection | 8611 to 8611, 8611 to Mini-SAS HD, right-angle options | Industrial PCs, embedded systems, external PCIe links |
Engineering Proof
Signal Integrity Validated — Not Assumed
For AI server and storage platforms, cable performance must be verified by measurement, not claimed by specification sheets. Suntecc's in-house lab validates impedance, insertion loss, return loss and eye diagram compliance before every shipment.
Equipment
Keysight ENA E5080B Network Analyzer
100 kHz to 53 GHz frequency range for comprehensive S-parameter measurement, impedance analysis and insertion loss characterization.
Result
PCIe 6.0 Eye Diagram Analysis
Eye diagram validation confirms signal quality meets PCIe 6.0 specifications. Used for design verification and production quality assurance.
Analysis
Insertion Loss Characterization
Frequency-domain loss measurement from DC to 26.6 GHz (Nyquist for PCIe 6.0). Enables data-driven cable length and material selection.
85Ω / 100Ω Impedance Control
Precision impedance matching for PCIe and SAS/PCIe interfaces. Controlled within ±5% tolerance.
Low Insertion Loss
Optimized dielectric materials and conductor geometry for minimal signal attenuation at 32 GT/s and 64 GT/s.
EMI Shielding Options
Aluminum foil, braided shield and LSZH/PVC jacket combinations for varying EMI environments.
100% Production Testing
Every cable undergoes electrical continuity, impedance and visual inspection before shipment.
Technical content reviewed against Suntecc's available product catalog, factory capability materials and high-frequency testing evidence.
Bandwidth Proof
Independent PCIe 5.0 x16 Bandwidth Benchmark
Laboratory benchmark testing of PCIe 5.0 x16 riser cables under identical conditions using 3DMark Storage Bandwidth test. All cables tested with the same GPU, motherboard and NVMe SSD.
Competitor A
42 GB/s
66% throughput — indicating signal degradation and potential compatibility issues with high-speed devices.
Competitor B
52 GB/s
81% efficiency — acceptable performance but with measurable signal loss under sustained load.
Suntecc
62 GB/s
97% of theoretical maximum — validated signal integrity with minimal attenuation at PCIe 5.0 x16 bandwidth.
Validation
GPU-Z PCIe 5.0 x16 Confirmation
PCIe 5.0 x16 link confirmed with full bandwidth utilization. The GPU-Z screenshot verifies the connection is running at PCIe 5.0 speeds with no fallback to lower generations.
Manufacturing & QC
From Prototype to Mass Production
Suntecc combines Taiwan engineering support with Dongguan manufacturing efficiency. We support early engineering samples, custom drawings and scalable production for recurring B2B orders.
300+skilled workers
500K+monthly capacity
7-10day sample lead time
01Requirement review
02Material selection
03Cutting and stripping
04Crimping or soldering
05Assembly and labeling
06TDR and electrical test
07Visual inspection
08Packaging and shipment
Application Solutions
Built Around Real Engineering Scenarios
Instead of selling only part numbers, we help customers match connector type, speed, length, shielding and routing constraints to the target system.
GPU & Accelerator Interconnects
PCIe 6.0 CEM to MCIO, MCIO 8X/16X assemblies for NVIDIA H100/H200, AMD MI300X and custom AI training clusters. Supports 400G/800G accelerator routing with validated signal integrity.
Enterprise Storage & JBOD
SlimSAS SFF-8654, Mini-SAS HD SFF-8643 and MCIO assemblies for storage backplanes, RAID controllers and high-density NVMe enclosures. Fanout options to SATA and OCuLink.
Embedded & Ruggedized Systems
OCuLink and PCIe cables with custom length, right-angle connectors, LSZH/PVC jacket and EMI shielding for constrained industrial PCs, medical devices and edge computing platforms.
GPU Risers & Power Cables
PCIe 5.0/6.0 riser cables, 12VHPWR 600W power cables and USB4 80G accessories for gaming rigs, workstations and premium PC brands. Retail packaging available.
Custom OEM/ODM
Custom Cable Design from Drawing Review to Production
Send us your mechanical constraints, connector requirements, speed target or drawing. Our team can support design review, DFM feedback, sample production and volume manufacturing.
Typical Custom Process
- 01Share requirements or drawing
- 02Engineering review and quotation
- 03Sample build in 7-10 days
- 04Testing and validation
- 05Mass production and inspection
RFQ
Request a Custom Cable Quote
Submit your requirements for a detailed quotation. If you have drawings, BOM, impedance targets or test specifications, please include them. You can also send files directly to info@suntecc.com.
- Response within 24 business hours (GMT+8, Mon-Fri)
- DFM review and design consultation available
- Standard and custom samples supported
- Volume production from 100 to 100,000+ units
Resources
Helpful RFQ and Selection References
Use these official Suntecc resources to continue product research, compare interfaces and prepare a more accurate RFQ.
Capability Sheet
Company overview, factory capability, quality system and supported high-speed product families.
All Product Families
Browse the complete Suntecc catalog including SATA, USB, HDMI/DP, power cables and connector products.
Open product catalog ↗MCIO vs SlimSAS Guide
Read Suntecc's interface selection article for server and storage high-speed transmission designs.
Read guide ↗PCIe 5.0 / 6.0 FAQ
Use the FAQ article as a starting point before selecting PCIe cable length, connector and test requirements.
Read FAQ ↗For NVIDIA H100/H200 HGX platforms, the primary cable is PCIe 6.0 CEM to MCIO 8X x2 (model T1070I7J12504). This connects the GPU baseboard to the PCIe switch or CPU riser. For 800G network adapters, we also supply MCIO 8X and MCIO 16X 124P assemblies. Send us your platform layout and we'll recommend the exact configuration.
Yes. Suntecc validates PCIe 6.0 cables in-house using Keysight ENA E5080B network analyzers (100 kHz – 53 GHz). We measure impedance (85Ω ±5%), insertion loss, return loss and eye diagram compliance. In our 3DMark bandwidth test, Suntecc PCIe 5.0 x16 riser cables achieved 62 GB/s (97% efficiency) — among the highest in the market.
For PCIe 6.0 (64 GT/s), we recommend ≤500mm for optimal signal integrity. For PCIe 5.0 (32 GT/s), lengths up to 1 meter are achievable with proper impedance control. Longer lengths are possible with signal conditioning — contact our engineering team for DFM feedback on your specific requirements.
For U.2/U.3 NVMe drives, use our SFF-8639 to SFF-8643 cables (model T1070E9681801). These support NVMe, SAS and SATA protocols with hot-swap capability. For multi-drive JBOD enclosures, use SlimSAS SFF-8654 8X with fanout to SFF-8643 or SATA connectors.
SFF-8654 / SlimSAS is optimized for enterprise storage (JBOD, RAID, NVMe enclosures) with SAS/PCIe dual-protocol support. MCIO is designed for compact AI server internal routing where space is constrained. Choose SFF-8654 for storage backplanes; choose MCIO for GPU/accelerator interconnects.
Yes. Suntecc supports full OEM/ODM services including custom length, right-angle / side-bend connectors, wire gauge (30AWG/32AWG), LSZH/PVC jacket, EMI shielding, labeling and co-branding. MOQ starts from 100 units for standard configs. Send your drawing or BOM for DFM review.
Standard samples: 7-10 business days. Custom samples: 2-3 weeks depending on complexity. Volume production: 3-4 weeks after sample approval. For urgent needs, contact us for expedited options.
In-house testing: Impedance, insertion loss, return loss, eye diagram (up to 53 GHz). Production testing: 100% electrical continuity and visual inspection. Certifications: ISO 9001, ISO 14001, UL listed. We can provide custom test reports based on your specifications.
Please provide: 1) Product family (PCIe 6.0/5.0, MCIO, SlimSAS, etc.), 2) Connector type and pinout, 3) Cable length, 4) Target platform, 5) Quantity, 6) Any testing or certification requirements. Drawings or BOM files can be sent to info@suntecc.com.
Ready to Start?
Build Your Next High-Speed Cable with Suntecc
For drawings, test requirements or urgent sample needs, contact the team directly.