eDP cable assembly has become our second-largest product line, running about 25% of factory output. Most of it ships to laptop ODMs in Taiwan and mainland China building 4K-capable notebooks, gaming laptops, and high-resolution mobile workstations for brands sold in the US, Europe, and Japan. We handle eDP 1.2 through eDP 1.4b specifications, with connector work primarily on I-PEX Cabline-CA II, JAE FI-JH, and Hirose FH-series families. MOQ starts at 100 sets. First samples in 7–10 days, repeat production in 10–14 days from drawing approval.
What Is an eDP Cable?
eDP stands for Embedded DisplayPort. It’s the VESA standard designed specifically for connecting graphics processors to integrated display panels in laptops, tablets, all-in-one PCs, and similar devices. Built on the same fundamentals as DisplayPort, eDP adds power-saving features and form-factor optimizations for embedded use.
Unlike the parallel differential pairs of older LVDS cable, eDP uses packet-based serial links. Each lane carries encoded data at high bit rates, with the GPU and panel negotiating rates at startup. Current speed tiers include:
- HBR (High Bit Rate) — 2.7 Gbps per lane, from eDP 1.2.
- HBR2 — 5.4 Gbps per lane, supports typical 4K60 displays.
- HBR3 — 8.1 Gbps per lane, introduced in eDP 1.4, required for 4K144 and 8K panels.
- UHBR (Ultra High Bit Rate) — 10 to 20 Gbps per lane in DisplayPort 2.0 / eDP 1.5. Still rolling out in production panels.
eDP also includes an AUX Channel for bidirectional communication and functions like Panel Self-Refresh (PSR), Display Stream Compression (DSC), and Multi-SST Operation (MSO). A proper eDP cable assembly has to preserve signal integrity across all of these, which mostly comes down to impedance control and shielding quality.
When to Choose eDP over LVDS
Design engineers new to display cable selection often ask the same question. Here’s the honest answer:
- Use eDP if your product targets FHD+ at higher refresh rates, QHD, 4K, or 8K. Also if you need PSR for battery life in a mobile device, or DSC to support high resolutions over fewer lanes.
- Use LVDS if your product is FHD or lower resolution, the panel’s receiver is LVDS-only, or cost is the dominant driver on a mature design. LVDS remains the lower-cost option at resolutions where both work.
- Legacy replacement — if you’re reproducing a cable for an existing product, match what’s already there. Don’t upgrade LVDS to eDP without verifying the panel controller supports it.
In modern laptop designs released 2020 and later, eDP has become the default. Most gaming laptops, ultrabooks, and mobile workstations now ship with eDP 1.4 or newer.
eDP Connector Families We Build With
The eDP connector landscape overlaps significantly with LVDS, but the preferred series are different because of signal speed requirements at HBR2 and HBR3:
- I-PEX Cabline-CA II and Cabline-VS II — the most common eDP connectors in modern laptops. The CA II series specifically targets eDP 1.4 HBR3 signal integrity. 0.4 mm pitch. Low-profile.
- JAE FI-JH series — popular for industrial and commercial embedded displays. Higher pin counts available for multi-lane eDP builds.
- Hirose FH-series (FH12, FH19, FH26) — common in Japanese-designed products and premium laptop brands. Sometimes also used in medical and imaging equipment where Hirose is a preferred vendor.
- KEL USL and SSL — overlap with LVDS usage, but KEL variants with appropriate signal speed ratings show up in eDP designs too.
For eDP HBR2 and HBR3 applications, connector selection matters more than with LVDS — the bandwidth tolerance is tighter, and a mismatched connector can cause intermittent display issues that are hard to debug after the product ships.
eDP Cable Specifications We Support
| Parameter | Range |
|---|---|
| eDP Version Support | eDP 1.2, 1.3, 1.4, 1.4a, 1.4b |
| Signal Speed | HBR (2.7 Gbps) to HBR3 (8.1 Gbps) per lane |
| Connector Pitch | 0.4 mm, 0.5 mm |
| Pin Count | 20, 30, 40, 50 (higher on request) |
| Wire AWG | 32 AWG to 42 AWG micro-coaxial or twin-axial |
| Differential Impedance | 100 Ω ± 10% across all lanes |
| Cable Length | 100 mm to 1,000 mm (longer on engineering review) |
| Shielding | Foil + braid combination standard for HBR2/HBR3 |
| Jacket Material | PVC, TPU, silicone (high-flex variants) |
| Operating Temperature | -40°C to +85°C (standard), +105°C available |
| Flex Life (high-flex variants) | 50,000 to 100,000+ cycles |
| Compliance | RoHS, REACH, UL-recognized wire options |
| MOQ | 100 sets standard, lower for prototypes |
For eDP 1.5 and UHBR speeds, contact us directly — these are still relatively early in volume production, and we work with customers individually on impedance spec and qualification.
Typical Applications
eDP cable production breaks down across these categories:
4K-capable laptops and notebooks. Our biggest eDP application. Panel-side connection from the GPU to the display, usually routed through the hinge. Requires high-flex cable and tight impedance control for HBR2 or HBR3 speeds.
Gaming laptops and workstations. Higher refresh rates (144 Hz, 240 Hz) demand HBR3 bandwidth. Cable construction needs careful skew control and shielding — EMI from a high-TDP CPU sitting nearby can cause visible panel artifacts if the cable is undersized.
All-in-one PCs and monitors. Longer cable runs (500 mm to 1,000 mm) connecting the motherboard to a large embedded display. Here, shielding and length-matching become the dominant design challenges.
Premium tablets and 2-in-1 devices. eDP is standard on high-end tablets with 4K displays. Usually short cables with very compact connectors — compact-pitch I-PEX or KEL variants.
Industrial and commercial embedded displays. Kiosks, medical imaging, digital signage. Here durability and IPC/WHMA-A-620 Class 2 or Class 3 workmanship matter more than pure cost optimization.
In-vehicle entertainment. Newer automotive infotainment systems use eDP over LVDS for 4K dashboards and rear-seat entertainment. When combined with IATF 16949 process requirements, these are carefully specified programs.
Why SZFRS for eDP Cable Manufacturing
eDP is more forgiving than RF and coaxial work, but less forgiving than LVDS. A bad cable at HBR3 doesn’t fail completely — it usually shows up as intermittent artifacts that are hard to diagnose later. We approach eDP with that in mind:
Signal integrity first. Differential impedance verification is standard on every eDP first article, not optional. We measure TDR (Time Domain Reflectometry) on the impedance-controlled pairs to catch variations before mass production.
Current connector library. We stock the eDP-optimized versions — Cabline-CA II, Cabline-VS II, FI-JH — separately from older LVDS-era parts. This matters because engineering mix-ups (CA vs CA II, for instance) cause real field issues.
HBR3 production experience. Roughly 35% of our eDP work runs at HBR3 speeds now, up from less than 10% two years ago. Our operators know what the high-speed cables look and feel like, and how to spot issues before they ship.
LVDS-to-eDP migration support. Some clients are updating older product designs from LVDS to eDP. We help with connector cross-reference, DFM review, and sample builds. See our capabilities page for equipment details.
IPC/WHMA-A-620 workmanship. Class 2 standard, Class 3 on request. Details on the quality and certifications page.
Our eDP Cable Manufacturing Process
- Drawing review and eDP spec check. Our engineers verify the pin-out against the declared eDP version, confirm lane count, and check impedance specification.
- Material sourcing. Impedance-matched twin-axial or micro-coaxial wire sourced to the HBR2/HBR3 requirement. Connectors from authorized I-PEX / JAE / Hirose / KEL distribution.
- Precision cutting and length matching. Differential pair length matching within 1 mm for HBR2, tighter (0.5 mm) for HBR3 designs.
- Termination. Fine-pitch connector insertion by IPC-certified operators. 0.4 mm pitch work happens at dedicated stations with magnification.
- Shielding. Foil wrap plus braid for HBR2/HBR3 builds. Drain wire routing and grounding verified per drawing.
- TDR impedance testing. First article and periodic lot samples tested with TDR to confirm 100 Ω ± tolerance across all pairs.
- Continuity, hi-pot, and visual inspection. 100% of cables pass continuity; hi-pot and visual per sampling plan.
- ESD packaging. Anti-static bag, moisture barrier for 105°C variants, per-customer labeling.
Frequently Asked Questions
What’s the difference between eDP 1.2, 1.4, and 1.5?
eDP 1.2 added HBR2 (5.4 Gbps/lane) and PSR for power savings. eDP 1.4 added HBR3 (8.1 Gbps/lane), MSO, Display Stream Compression, and refined PSR. eDP 1.5 introduces UHBR speeds from DisplayPort 2.0 plus further power optimizations. Most production panels today use eDP 1.4 or 1.4b; eDP 1.5 is just entering volume.
Can you build eDP cable for 4K and 8K displays?
Yes. 4K60 over eDP typically needs HBR2 on 4 lanes, which is well within our standard production. 4K120+ and 8K panels need HBR3, which we also handle routinely. For very high refresh rate 8K, the panel spec sheet usually defines the cable requirement — send us the display datasheet and we’ll match.
How is eDP different from DisplayPort?
DisplayPort is the external-connection standard (cable between a PC and monitor). eDP is the embedded version designed for internal cable runs between a processor and a built-in panel. Same protocol fundamentals, different connectors, different form-factor optimizations, and eDP includes embedded-specific features like PSR.
Do you provide TDR impedance test reports?
Yes. First article TDR reports are standard for HBR2 and HBR3 programs. For production, we can add per-lot TDR sampling to the quality package. This matters especially for clients running display qualification tests where marginal cables cause test failures.
Can you reproduce an eDP cable from a sample only?
Yes. Send the old cable. We measure pin-out, wire type, shield construction, connector series, and length. For eDP, we also verify the intended signal speed through the connector specification so we build cable matching the original panel’s requirement.
What’s your MOQ and lead time?
100 sets for production. Prototype batches of 10–50 pieces available with modest NRE. First samples typically ship 7–10 days after drawing approval. Production lots run 10–14 days for repeat orders.
Can you handle eDP cable for automotive programs?
Yes. IATF 16949 process runs on dedicated production cells for automotive eDP work. Wider temperature rating (-40°C to +105°C), PPAP documentation, and material certificates supplied. Tier-1 automotive supplier relationships supported.
What drawing file formats do you accept?
PDF, DWG, STEP. For eDP specifically, the drawing should include eDP version target, signal speed (HBR2 / HBR3 / UHBR), lane count, pin-out, cable length, impedance target, and shield construction. If the information isn’t all available, send what you have and we help complete the spec.
Related Cable Products
If you’re comparing cable options for a display or imaging project:
- Cable Assembly — full overview of our cable assembly capabilities.
- LVDS Cable — the older-generation standard, still dominant in FHD and cost-sensitive designs.
- Micro-Coaxial Cable — ultra-fine coaxial for RF and some high-speed digital work.
- MIPI Cable — mobile processor-to-display and camera interface standard.
- Medical Cable Assembly — display and imaging cables for medical devices.
Ready to Quote Your eDP Cable Project?
Send us a drawing, the panel datasheet, or even just the eDP version target and pin count. We’ll come back with a quote, timeline, and engineering feedback within 24 hours. Whether it’s 4K at 60 Hz or 8K at 120 Hz, we’ve built it or something close to it.