Description
The Kramer 675R/T is a high-performance HDMI extender kit designed for ultra-long-distance 4K60 (4:4:4) signal transmission over multimode or single-mode fiber optic infrastructure. Engineered for mission-critical AV applications, the 675R/T converts HDMI to optical signals using Kramer certified 10Gbps SFP+ modules, ensuring near-zero latency and uncompromised image quality across distances up to 3km (MM) or 33km (SM).
Featuring I-EDIDPro™ Intelligent EDID Processing, the kit guarantees seamless plug-and-play operation between source and display devices. Its rugged, fanless DigiTOOLS® enclosure enables easy rack mounting and reliable performance in professional AV environments. With HDCP 2.2 support, advanced audio formats, and LED indicators for fast diagnostics, the 675R/T delivers a cost-effective, dependable extension solution for modern 4K installations.
| Category | Details |
|---|---|
| Inputs | HDMI (female), Fiber Optic on LC connector(s) |
| Outputs | HDMI (female), Fiber Optic on LC connector(s) |
| Ports | Micro-USB (service) |
| Max Video Bandwidth | 18Gbps |
| Max Resolution | 4096×2160 @ 60Hz, 4K60 4:4:4 |
| Latency | ≤10µsec (virtually zero) |
| Compliance | HDMI 2.0, HDCP 2.2 |
| Optical Extension | MM or SM fiber; 10Gbps SFP+ IEEE 802.3ae modules (MM included) |
| Max Reach | MM: up to 3km (OM3) • SM: up to 33km (OS1) |
| Status Indicators | Source detect, sink detect, optical link, power LEDs |
| Power Consumption | 675T: 280mA • 675R: 220mA • 12V DC, 2A source |
| Operating Temperature | 0°C to +40°C (32°F to 104°F) |
| Storage Temperature | –40°C to +70°C (–40°F to 158°F) |
| Humidity | 10%–90% non-condensing |
| Enclosure | Aluminum, convection-cooled |
| Included Accessories | 2× MM SFP+ modules, 2× power adapters, 2× mounting bracket sets |
| Product Dimensions (W×D×H) | 12.00 × 7.15 × 2.44 cm (4.72" × 2.81" × 0.96") |
| Product Weight | 0.5 kg (1.0 lb) |
| Shipping Dimensions | 15.70 × 12.00 × 8.70 cm |
| Shipping Weight | 0.7 kg (1.6 lb) |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
