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NewTek NDIHX Converter Comparison Chart
| NewTek Connect Spark (SDI) | NewTek Connect Spark (HDMI) | |
| Input | 1 x 3G/HD/SD-SDI | 1 x HDMI |
| Loop Out | 1 x 3G/HD/SD-SDI | 1 x HDMI |
| Audio | SDI embedded 3.5mm Line Level | HDMI embedded 3.5mm Line Level |
| Encoding | NDI|HX | NDI|HX |
| Ethernet | 1 x RJ-45 port for 10/100 M Ethernet networking | 1 x RJ-45 port for 10/100 M Ethernet networking |
| Wireless | Built-in WiFi radio 2 x 5db 2.4G/5.8G dual-band antennas IEEE 802.11 a/b/g/n | Built-in WiFi radio 2 x 5db 2.4G/5.8G dual-band antennas IEEE 802.11 a/b/g/n |
| Interface | Web-based user interface for configuration and monitoring | Web-based user interface for configuration and monitoring |
| Tally | Tally support via NDI, with built-in program/preview tally lights | Tally support via NDI, with built-in program/preview tally lights |
| Formats | 1080p: 59.94, 50, 29.97, 25, 24, 23.98 1080i: 59.94 720p: 59.94, 50, 29.97, 25, 24, 23.98 | 1080p: 59.94, 50, 29.97, 25, 24, 23.98 720p: 59.94, 50, 29.97, 25, 24, 23.98 |
| Standards | SDI: SMPTE ST-424M, ST-292M | HDMI: 0.8Vp-p |
| Recording* | Video: MPEG-TS Audio: AAC *Optional USB or Micro SD card required (not included) | Video: MPEG-TS Audio: AAC *Optional USB or Micro SD card required (not included) |
| BNC | 75 Ohm impedance | — Not applicable — |
| USB | 2 x USB 2.0 Type-A 1 x USB 2.0 Mini-USB | 2 x USB 2.0 Type-A 1 x USB 2.0 Mini-USB |
| Power | External DC 12V 1A adapter included 4W max power consumption | External DC 12V 1A adapter included 4W max power consumption |
| Environmental | Operating temperature: -20°C to 80°C Relative humidity: 20% to 90% | Operating temperature: -20°C to 80°C Relative humidity: 20% to 90% |
| Physical | 5.0 x 4.25 x 1.125 in (127 x 108 x 28 mm) 7.76 oz (220g) | 5.0 x 3.5 x 1.125 in (127 x 89 x 28 mm) 7.76 oz (220g) |