PCIe 6.0 READY
We manufacture high-speed internal cable assemblies including PCIe 5.0/6.0 riser cables, MCIO SFF-TA-1016, SlimSAS SFF-8654, OCuLink, MiniSAS HD, and custom twinax cable solutions for AI servers, GPU servers, data centers, and enterprise storage systems.
Core High-Speed Products
Custom high-speed internal cable assemblies for AI servers, GPU servers, data centers, and enterprise storage systems. We support custom cable length, connector orientation, pinout, impedance control, and engineering validation requirements.
PCIe 6.0 / MCIO SFF-TA-1016
PCIe 6.0
PCIe 5.0
MCIO SFF-TA-1016
MCIO SFF-TA-1016
SlimSAS SFF-8654
U.2/U.3 NVMe
OCuLink SFF-8611
12VHPWR
USB4
Engineer Selection Guide
A concise comparison helps engineers and sourcing teams decide which interface family should enter the RFQ first.
| Specification | PCIe 6.0 / 5.0 CEM | MCIO (SFF-TA-1016) | SlimSAS (SFF-8654) |
|---|---|---|---|
| Max Speed / Bandwidth | 64 GT/s (Gen6) / 32 GT/s (Gen5) | Up to 64 GT/s (PCIe 6.0 ready) | Up to 24G SAS / 32 GT/s PCIe 5.0 |
| Target Application | GPU / Accelerator Expansion | High-Density AI Server Internal Routing | Enterprise Storage / NVMe / RAID |
| Impedance | 85Ω differential | 85Ω (PCIe) or 100Ω differential | 85Ω / 100Ω differential |
| Protocol Support | PCIe / CXL | PCIe / CXL / Ethernet | SAS / PCIe / SATA |
| 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 SFF-TA-1016 | Compact high-density internal PCIe routing | 4i/8i/16i, 85/100Ω differential, 124-pin/148-pin, straight or side-bend | Dense servers, storage controllers, backplanes |
| SlimSAS SFF-8654 | Enterprise storage and multi-lane SAS/PCIe cabling | 4X/8X, SFF-8643, SATA fanout, OCuLink fanout | JBOD, RAID, NVMe storage enclosures |
| U.2/U.3 NVMe | NVMe SSD drive connection | SFF-8639 to Mini-SAS HD, SATA power, braided options | Server SSD trays and storage systems |
| OCuLink SFF-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 |
Bandwidth Proof
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.
⚠ Only 66% of rated bandwidth reached — a common result with cables that lack proper impedance control and shielding, causing severe signal attenuation at Gen5 speeds.
⚠ 19% bandwidth loss — passable under light load, but signal integrity degrades noticeably during sustained high-throughput data transfer.
97% of theoretical maximum — validated signal integrity with minimal attenuation at PCIe 5.0 x16 bandwidth.
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.
Engineering Proof
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, crosstalk, and eye diagram compliance using VNA and TDR testing before every shipment.
100 kHz to 53 GHz frequency range for comprehensive S-parameter measurement, impedance analysis and insertion loss characterization.
Eye diagram validation confirms signal quality meets PCIe 6.0 specifications. Used for design verification and production quality assurance.
Frequency-domain loss measurement from DC to 26.6 GHz (Nyquist for PCIe 6.0). Enables data-driven cable length and material selection.
Technical content reviewed against Suntecc's available product catalog, factory capability materials and high-frequency testing evidence.
Manufacturing & QC
Suntecc combines Taiwan engineering support with Dongguan manufacturing efficiency. We support early engineering samples, custom drawings and scalable production for recurring B2B orders.
Application Solutions
Instead of selling only part numbers, we help customers match connector type, speed, length, shielding and routing constraints to the target system.
PCIe 6.0 CEM to MCIO, MCIO 8X/16X assemblies. Designed for next-generation AI server, GPU accelerator and high-density PCIe interconnect architectures; platform compatibility depends on connector, pinout, channel budget and system validation. Supports 400G/800G accelerator routing with validated signal integrity.
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.
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.
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
Send us your mechanical constraints, connector requirements, speed target or drawing. Our team can support design review, DFM feedback, sample production and volume manufacturing.
RFQ
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.
Resources
Use these official Suntecc resources to continue product research, compare interfaces and prepare a more accurate RFQ.
Company overview, factory capability, quality system and supported high-speed product families.
Browse the complete Suntecc catalog including SATA, USB, HDMI/DP, power cables and connector products.
Open product catalog →Read Suntecc's interface selection article for server and storage high-speed transmission designs.
Read guide ↗Use the FAQ article as a starting point before selecting PCIe cable length, connector and test requirements.
Read FAQ ↗Designed for next-generation AI server, GPU accelerator and high-density PCIe interconnect architectures; platform compatibility depends on connector, pinout, channel budget and system validation. 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 SFF-TA-1016 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?
Our engineering team will review your requirements and provide a custom cable assembly solution. For drawings, test requirements or urgent sample needs, contact the team directly.
Our email address:
You can also send your drawing or pinout to this email address directly.
Our phone number:
Call us during business hours (GMT+8, Mon-Fri 9:00-18:00).
Frequently Asked Questions
Common questions from engineering and sourcing teams regarding our high-speed interconnect solutions.
Designed for next-generation AI server, GPU accelerator and high-density PCIe interconnect architectures; platform compatibility depends on connector, pinout, channel budget and system validation.
Yes. Suntecc validates PCIe 6.0 cables in-house using Keysight ENA E5080B network analyzers (100 kHz – 53 GHz). They measure impedance (85Ω ±5%), insertion loss, return loss and eye diagram compliance. In 3DMark bandwidth testing, Suntecc PCIe 5.0 x16 riser cables achieved 62 GB/s (97% efficiency).
For PCIe 6.0 (64 GT/s), ≤500mm is recommended 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.
SlimSAS (SFF-8654) is optimized for enterprise storage (JBOD, RAID, NVMe enclosures) with SAS/PCIe dual-protocol support. MCIO (SFF-TA-1016) 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 configurations.
