SKU: 86445007460

Kiloview N40 UHD HDMI / NDI Bidirectional Converter

$10242.36 $11380.40
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Description

Kiloview N40 UHD HDMI / NDI Bidirectional ConverterThe Kiloview N40 (often cataloged as KIL N40 or N40 Plus) is a professional, pocket sized 4K UHD HDMI to NDI bidirectional hardware converter. Driven by an internal FPGA chip, it functions as a switchable, half duplex transceiver. This means it can either act as an Encoder (compressing a raw 4K HDMI camera signal into a low latency IP network stream) or a Decoder (pulling an IP stream from the network and outputting it via physical HDMI to a display,

The Kiloview N40 (often cataloged as KIL-N40 or N40 Plus) is a professional, pocket-sized 4K UHD HDMI to NDI bidirectional hardware converter. Driven by an internal FPGA chip, it functions as a switchable, half-duplex transceiver. This means it can either act as an Encoder (compressing a raw 4K HDMI camera signal into a low-latency IP network stream) or a Decoder (pulling an IP stream from the network and outputting it via physical HDMI to a display, project, or legacy switcher).

Unlike Kiloview's multi-codec Gen 2 transceivers, the N40 focuses heavily on processing premium, high-bandwidth Full NDI (SpeedHQ) at up to 4K UHD at 60 frames per second, delivering visually lossless images with sub-frame latency.

Core Engineering and Operational Features

  • True Bidirectional Versatility: The unit provides two distinct operational workflows chosen through its local menu or web interface. In Encoding Mode, it ingests a 4K60 HDMI feed and broadcasts it onto the NDI network. In Decoding Mode, it pulls any designated NDI source off the network and outputs it cleanly to a physical HDMI destination.

  • Prinstine Image Performance: Equipped with an HDMI 2.0 pipeline, the N40 natively handles resolutions up to 3840 × 2160 pixels at 60fps. It processes professional YCbCr 4:2:2 color profiles, ensuring highly accurate color tracking and clean, artifact-free edges—critical for live green-screen keying or graphics rendering.

  • Lag-Free Local Loop-Through: When configured as an encoder, the second HDMI port acts as a physical, zero-latency loop-out. This allows camera operators to feed a local on-camera confidence monitor while sending the compressed NDI packet down the network line.

  • Lagless Decoder Stream Switching: When acting as a decoder, the N40 uses Kiloview’s specialized frame-buffer management technology. Operators can preset up to 9 network NDI stream addresses. Switching between these channels via the dashboard triggers instantly without black frames, signal lag, or frozen macroblocks.

  • Flexible Wide-Voltage Power Array: The unit is highly adaptable in the field. It can run on standard Power over Ethernet (PoE) via its Gigabit port, or draw power across a wide 5V to 18V DC spectrum through its USB-C terminal. This allows it to be powered by a basic phone power bank, a USB port on a laptop, or an on-camera D-Tap battery link.

  • Oversized Production Tally Light: Built straight into the face of the rugged casing is a large, highly visible LED Tally block. It communicates bi-directionally with NDI-compatible production switchers (like NewTek TriCaster, vMix, or OBS), glowing Red for Program (PGM) and Green for Preview (PVW) to guide on-camera talent.

  • PTZ Control and Voice Intercom: The N40 supports bi-directional 3.5mm analog audio loops for voice intercom connections when coupled with a USB headset and the Kiloview Intercom Server (KIS). It also natively routes remote PTZ camera commands over IP or via a USB-to-serial expansion cable using standard VISCA, Pelco-D, and Pelco-P telemetry.

Hardware Technical Specifications Matrix

Parameter Kiloview N40 System Specifications
Video Input Interface 1 × HDMI 2.0 Type-A (Up to 4Kp60, 4:2:2 processing)
Video Output Interface 1 × HDMI 2.0 Type-A (Active loop-out or decoded output)
Network Interface 1 × RJ45 1000Mbps Ethernet port (with PoE support)
NDI Codec Flavor High-Bandwidth Full NDI (SpeedHQ compression profile)
Target NDI Bandwidths 4Kp60: ~250Mbps | 4Kp30: ~200Mbps | 1080p60: ~125Mbps
Audio Line Ports 1 × 3.5mm Headphone/Microphone TRRS Analog Jack
USB Interface Ports 1 × USB-C (Power delivery input), 1 × USB expansion port
End-to-End Processing Latency Optimized hardware mode yielding under 100ms total latency
Power Consumption Highly efficient 6 Watts maximum power draw
Physical Enclosure Profile 100 mm × 80 mm × 24 mm | Weight: ~235 grams

💡 Operational System Tips for the N40 Converter

The Full NDI Multi-Cam Switch Calculus: Because the N40 operates exclusively in high-bandwidth Full NDI, it places immediate data demands on your network switch gear. Since a single 4K60 stream requires 250 Megabits per second of continuous throughput, running just three N40 units at full resolution will hover around 750 Mbps. This safely approaches the real-world threshold of a common 1GbE copper switch bottleneck. If you plan to scale a multi-cam live venue beyond three 4K lines, always backhaul your edge switches to a core switch network utilizing high-capacity 10GbE SFP+ fiber optic links to protect against dropped frames or packet losses.

  • Deploying the USB Keypad Source Preset Switcher: If you are using the N40 in decoding mode to drive a projector or a large display wall at a live event, you can connect a standard, inexpensive USB numeric keypad into the converter's USB expansion slot. Map your favorite network NDI camera streams to the 0–9 keys inside the web UI. Once configured, you can shift your physical display between ten completely different production cameras with a single keypress, creating a localized, lightweight hardware switching terminal.

  • Physical Mechanical Rigging: The lightweight aluminum chassis features standard internal 1/4"-20 threaded mounting options alongside lateral grooves on the frame body. This allows you to attach a cold-shoe mount to fix the converter directly on top of an on-field camera handle, or lock up to four N40 units side-by-side inside Kiloview's specialized 1RU passive rack enclosure inside a central control room.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 86445007460

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4.3 ★★★★★
Based on 28 reviews
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ibuy2much
Pawtucket, US
★★★★★ 4
Nice office chair!
Color: Dark
This is a nice office chair. All of the features work as stated. I would say the seat is slightly more firm than I prefer, but comfort is subjective. The pleather is soft and I like that the arm rests fold out of the way.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
H
HateToRegister
Lexington, US
★★★★★ 5
This Marsail Executive Office Chair Is Excellent For A Comfortable And Polished Desk Setup
Color: Dark
This Marsail executive office chair is excellent, and it brings together comfort, support and a clean professional look in a very practical way. The PU leather has a smooth, polished presence that suits a desk chair well without looking overly bulky. I appreciate that the design includes flip-up armrests, a height-adjustable seat, swivel movement and rolling mobility in one complete chair. The cushioning gives the chair a substantial seated feel, while the back design adds support without making the chair look heavy. It is an office chair that feels thoughtfully built for daily desk work, focused tasks and general seated comfort. The chair arrived securely protected and in very good condition, with the main parts kept in place well through transit. The PU leather surfaces looked clean, smooth and free from distracting marks when unpacked. The base, wheels, armrests, backrest and hardware all appeared properly finished and ready for assembly. Nothing about the chair parts looked loose, flimsy or poorly handled when it arrived. The included components were organized. The appearance of this chair is one of its strongest qualities because it has a dark, sleek and professional style. The chair fabric gives it a refined executive look, while the breathable mesh center keeps the backrest from appearing too solid or oversized. The flip-up armrests blend into the design nicely and add a cleaner profile when raised. The chair has a balanced shape, with a supportive back, plush seat and wide base that all work together visually. It looks modern without being too flashy, which makes it easy to place with different desks and work areas. Functionality is where this chair becomes especially practical because it is easy to put together and simple to adjust. The height adjustment works well for getting the seat into a comfortable position at a desk. The swivel and rolling movement make it easy to shift, turn and reach without the chair feeling stiff. The reclining range and gentle rocking function add a useful option for leaning back during breaks. The flip-up armrests are especially convenient because they allow the chair to tuck under a desk more easily and create extra freedom of movement when needed. The value is strong because this chair offers several useful features in one well-rounded design. The thicker cushioning, contoured support, PU leather surface, breathable backrest, reclining function and flip-up armrests all add to its usefulness. The sturdy base and stated 300-pound support rating also give it a more dependable feel than a basic desk chair. It provides the comfort expected from an executive chair while still offering space-saving details that make it practical. For the features, comfort and overall build, it delivers a very complete office seating option. I highly recommend this Marsail executive office chair for anyone wanting a comfortable, polished and functional desk chair. It is excellent, easy to put together and built with enough adjustability to support different work habits. The combination of plush cushioning, ergonomic shaping, smooth movement and flip-up armrests makes it especially useful for a home office or workspace. I also like that it has a professional look without sacrificing everyday convenience. It is a strong choice for dependable seating that looks good, works well and offers solid comfort.
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Reviewed in the United States on May 5, 2026
C
Cart Curator
Grantham, US
★★★★★ 5
Comfortable for daily use!
Color: Dark, Color: Dark
After using this chair for work and general desk time, I think it does a nice job balancing comfort, adjustability, and overall build quality without feeling overly bulky or cheap. It feels designed for people who spend long stretches at a desk and want something supportive but still comfortable enough to relax in occasionally. Assembly was straightforward. The instructions were clear, the hardware was organized well, and all the holes lined up properly during setup. I put it together by myself in around 20 minutes without needing extra tools. Once assembled, the chair immediately felt sturdy and stable rather than wobbly. The overall quality is solid for this price range. The PU leather has a soft feel and doesn’t have the stiff plastic-like texture some office chairs use. The stitching looks clean, the armrests feel secure, and the rolling base moves smoothly across the floor. The chair also feels durable overall, especially around the frame and base where cheaper chairs sometimes feel weak or shaky after a few weeks of use. It's very comfortable. The seat cushion is thick and supportive without feeling overly hard, and it stays comfortable during long work sessions. I’ve spent multiple hours at a time sitting in it without constantly adjusting positions or feeling pressure points. The mesh section in the backrest also helps airflow a bit, which keeps it from feeling too hot during extended use. The lumbar support is great. The backrest naturally follows the curve of your spine and provides good lower back support while still feeling relaxed enough for casual sitting. I also liked the higher back design since it supports the upper back and shoulders well during longer periods at the desk. The flip-up armrests ended up being more useful than I expected. They make it easy to slide the chair under the desk when not in use, and they also give more room if you like sitting cross-legged occasionally. Solid chair overally. It has a good mix of comfort, support, ease of use, and practical features without feeling overpriced.
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Reviewed in the United States on May 26, 2026
T
theman
Draper, US
★★★★★ 4
Comfortable, easy to assemble, but no adjustable armrests
Color: Dark, Color: Dark
The Marsail Executive Office Chair Ergonomic Desk Chair with Flip-up Armrests PU Leather was an easy to assemble chair; I was done within 15 minutes with the included tool. Extra screws were included which was nice as the main pack had broken open and I couldn't find one of the primary screws in the larger box (my guess is I probably tossed it on accident with the packaging material) but had the backup so all was well. The instructions were well written and clear. I've now had the chair in my office for over a week. For context; I work from home and also am a PC gamer so I spend a sizeable portion of my time at my desk in the chair. I also live in the southeast US and its April when I am writing this review. With that said; its been in the 70s/80s regularly so feel like I can comment fairly on its performance in warmer temps; though I'll have to try and remember to comeback and update it for the summer season when AC is on full blast and humidity is higher (and the inevitable "swamp butt" sets in). In the first week I've found the chair to be comfortable to sit in. It is wide enough and the arm rests to the side enough that I can sort of lean left and right without much trouble. I like this wider seat and armrests compared to chairs with more narrow span as I tend to shift and move a lot while sitting. The PU leather material feels nice against my clothes and does "grip" the clothing which helps with my tendency to want to slide forward when sitting. At first I thought the "grip" would be annoying but I sort of like it after a week of using the chair. The cushion material is comfortable for sitting and rebounds well after I've been sitting in it for a long period of time. The armrests feature the same sort of cushion and PU leather material which makes them comfortable to sit back and lean on. For the price I think this is a solid office chair and a comfortable option. Longevity will only be tested over time so I'll see if I can remember to update this review over time. I am happy with the chair in my office. A few downsides about the chair that I have: - The wheels are very stiff and don't roll as smoothly as I'd like. They stay put when I am sitting at the desk but when I need to push away they take a bit of force. - The arm rests can't be adjusted for height. They are one height and can only be moved out of the way completely. For someone like who likes to lean or shift sides this is less than ideal as I'd normally make adjustments to the armrests. With that said it is nice to be able to move them out of the way completely when I don't need them. - Lumbar support could be better. I will be using additional support in the chair for my back.
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Reviewed in the United States on April 13, 2026
S
Sal
Birmingham, US
★★★★★ 5
Good for sitting on it daily. Not that soft as expected
Color: Dark, Color: Dark
I’ve been using this chair for a few days now and overall it’s pretty solid for a home office setup, especially for the price range. Assembly took me about 30–40 minutes alone and all the parts were labeled clearly. Nothing arrived damaged and the instructions were easy to follow, though attaching the backrest was a little awkward with one person. Once assembled, the chair looks clean and professional. The PU leather feels smooth and the cushioning is definitely thicker than cheaper office chairs I’ve tried. It’s comfortable for working several hours at a time, although I wouldn’t describe it as super plush or “sink-in” soft. The seat has a firmer feel, which may actually be better for posture during long work sessions. The ergonomic support is decent. The backrest follows the shape of your back fairly well and gives noticeable lumbar support compared to flat office chairs. I spend a lot of time at my desk and this chair helped reduce some lower back discomfort. The reclining and rocking feature is also nice for quick breaks between meetings or while watching videos. It doesn’t recline extremely far, but enough to relax a bit without feeling unstable. One feature I ended up liking more than expected was the flip-up armrests. They make it easy to slide the chair completely under the desk and also give more room if you like sitting cross-legged occasionally. The chair rolls smoothly and feels stable even when leaning back. A couple downsides though. The faux leather can get warm after extended sitting, especially in a warmer room. The mesh section helps airflow a little, but not enough to fully prevent heat buildup. Also, while the chair is comfortable, it doesn’t quite feel “premium executive” level in terms of materials. Some of the plastic components and armrests feel more mid-range than luxury. Overall, I’d say it’s a good value office chair with solid comfort, decent back support, and practical features. Great for everyday work or study use, just keep expectations realistic if you’re looking for a super high-end executive chair feel.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026

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