LG 55MH5K: 55" 4K IPS Surgical Monitor with 12G-SDI and Failover
Authorized LG surgical display supplier. The LG 55MH5K is a large-format 4K surgical monitor purpose-built for high-acuity operating room environments where team-wide visualization, single-cable 4K reliability, and medical certification matter. The 55-inch IPS panel resolves endoscopic and laparoscopic detail across a wide 178 degree viewing angle, so the entire surgical team sees the same clear image from any position in the room. A single 12G-SDI cable carries native 4K at 60 frames per second, and an automatic failover input switch protects the procedural display against signal loss.
Core specifications: 55-inch 4K UHD IPS panel (3840 by 2160) with 680 cd/m² brightness, a DCI-P3 86 percent color gamut, and HDR10. A single 12G-SDI input transports 4K60 over one coaxial cable up to 70 meters, with 12G-SDI, DisplayPort, and DVI-D loop-through outputs. Automatic failover input switch with restore, up to 4PBP and PIP multi-view, Mirror and Rotation modes, DICOM compliance with LG Calibration Studio hardware calibration, protection glass with anti-reflection and anti-fingerprint coatings, and IP45 front, IP32 rear, and IK06 protection. Weight 34.8 kg, VESA 200 by 200 mm and 300 by 300 mm.
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Wide-View IPS, Protection Glass, and 12G-SDI
Three technologies differentiate the 55MH5K from standard large-format and consumer displays. A 55-inch 4K IPS panel with a wide DCI-P3 gamut and HDR10 delivers team-wide image fidelity, 12G-SDI carries native 4K over a single cable with loop-through outputs, and protection glass with IP45, IP32, and IK06 ratings withstands the operating room. Full technical detail is in the expandable sections below.
Panel: 55-inch IPS, 3840 by 2160 4K UHD, 16:9
Brightness, typical: 680 cd/m²
Contrast Ratio, typical: 1,100:1
Color Gamut: DCI-P3 86 percent, CIE 1976
HDR: HDR10
Viewing Angle: 178° horizontal and 178° vertical
Response Time: 5 ms gray to gray at faster setting, 9 ms at off setting
DICOM: DICOM compliant, with LG Calibration Studio hardware calibration
Protection Glass: 3.1 mm protection glass with anti-reflection and anti-fingerprint coatings, which reduces ambient light reflections from operating room ceiling fixtures for clearer images in brightly lit environments
Anti-Fingerprint: resists smudges and allows cleaning with operating room grade disinfectants between cases
IP45, front: dust tight and protected against water jets from any direction
IP32, rear: protected against dripping water and solid particles
IK06: withstands 1 joule of impact energy for high-traffic clinical environments
How the 55MH5K compares against a standard large-format display:
The 55MH5K continuously monitors signal integrity on the active input and automatically switches to a designated backup source across HDMI, SDI, DVI, or DisplayPort, with no manual intervention. When the primary signal is restored, the display automatically switches back. In a live surgical environment this eliminates blank-screen events and provides a critical redundancy layer during high-stakes procedures.
Full Technical Specifications
Complete reference data for procurement, RFP submissions, and biomedical review. Hospital purchasing teams, imaging technology managers, and biomedical engineers rely on this specification set when they evaluate large-format operating room displays. Expand each category for full detail.
| Resolution | 4K UHD, 3,840 × 2,160 |
| Panel Type | IPS |
| Screen Size | 55-inch, 16:9 |
| Brightness, typical | 680 cd/m² |
| Contrast Ratio, typical | 1,100:1 |
| Color Gamut | DCI-P3 86 percent, CIE 1976 |
| HDR | HDR10 |
| Response Time | 5 ms gray to gray at faster, 9 ms at off setting |
| Viewing Angle | 178° horizontal and 178° vertical |
| Surface Treatment | Protection glass, 3.1 mm, anti-reflection and anti-fingerprint |
| DICOM | DICOM compliant, LG Calibration Studio hardware calibration |
| Weight, without stand | 34.8 kg, 76.7 lb |
| Dimensions, W by H by D | 1,283.4 × 768.5 × 68.3 mm |
| IP Rating, front | IP45, dust tight and water-jet protected |
| IP Rating, rear | IP32, protected against dripping water |
| Impact Protection | IK06, withstands 1 joule of impact |
| VESA Wall Mount | 200 × 200 mm and 300 × 300 mm |
| Video Inputs | HDMI, DisplayPort, DVI-D, 12G-SDI, one each |
| Video Outputs | 12G-SDI, DisplayPort, DVI-D loop-through |
| Single-Cable Distance | Up to 70 m at 4K and 60 frames per second over one cable |
| USB | 1 Upstream and 1 Downstream |
| Power Requirements | 100 to 240 Vac, 50/60 Hz |
| Power Consumption, maximum | 180 W |
| Power Consumption, DC off | Less than 0.3 W |
| DICOM Compliant | Yes, with LG Calibration Studio hardware calibration |
| HDR | HDR10 |
| PBP / PIP | Up to 4PBP, plus PIP |
| Screen Flip | Mirror Mode and Rotation Mode |
| Failover Input Switch | Yes, automatic switch with restore to main |
| Regulatory | FDA Class I, IEC 60601-1, IEC 60601-1-2, EN 60601-1, EN 60601-1-2, cUL, FCC Class A |
| Environmental | RoHS, REACH, WEEE |
Clinical Applications
Deployed across large-format surgical visualization environments wherever team-wide image clarity directly affects clinical workflow and outcomes.
The 55-inch 4K canvas gives the entire surgical team a clear view of endoscopic feeds, with single-cable 12G-SDI simplicity from the laparoscopic tower to the display.
Automatic failover input switching and IP45-rated front protection keep imaging continuous and cleanable during interventional cardiology and hybrid cardiac procedures.
HDR10 and 680 cd/m² brightness reveal subtle mucosal detail across the large 55-inch IPS panel from any position in the endoscopy suite.
Up to 4PBP multi-view displays four independent sources at once, giving the interventional team fluoroscopy, ultrasound, and reference imaging on one screen.
The 178 degree wide viewing angle and 55-inch format let residents and observers follow the procedure clearly from any angle in the operating room.
Display a camera feed, PACS images, vital signs, and navigational overlays at the same time with 4PBP, which reduces the number of separate displays in the operating room.
12G-SDI, Failover Switch, and Multi-View
A large-format 4K surgical AV integration platform engineered to slot into existing operating room infrastructure, including laparoscopic towers, hybrid operating room AV routing, and C-arm video sources. The expanded detail on inputs, loop-through outputs, multi-view modes, failover logic, and mounting is in the expandable sections below.
HDMI: connects cameras, a PC, or image management systems.
DisplayPort: supports high frame rate 4K sources.
12G-SDI, one input: carries native 4K at 60 frames per second over a single coaxial cable, up to 50 meters with a BELDEN cable or up to 70 meters with a CANARE UHD 5.5C cable, which suits laparoscopic tower and operating room AV integration. The 12G-SDI cable is sold separately.
DVI-D: provides legacy system compatibility.
USB: one upstream and one downstream port for firmware updates and peripherals.
12G-SDI Output: passes the SDI signal through to recording systems, PACS, or additional monitors without signal loss.
DisplayPort Output: loop-through to a second display.
DVI-D Output: loop-through for legacy displays and capture systems. These outputs let the 55MH5K sit in the middle of an operating room signal chain and feed downstream devices from the same sources.
4PBP: displays up to four independent sources side by side on the 55-inch canvas, for example an endoscopic camera, fluoroscopy, a navigation overlay, and vital signs at the same time.
PIP: overlays a secondary source in a resizable window.
Mirror Mode: flips the display horizontally for mirrored viewing configurations.
Rotation Mode: rotates the output 180 degrees for non-standard mounting orientations.
The 55MH5K monitors signal integrity on the active input and automatically switches to a designated backup source across HDMI, SDI, DVI, or DisplayPort, with no manual intervention. When the primary signal returns, the display automatically switches back to the main source. The main input and the failover input are set in the monitor menu. In a live surgical environment with multiple imaging sources connected, this two-way failover is a critical reliability layer that eliminates blank-screen events.
IP45, front: dust tight and protected against water jets from any direction, and compatible with operating room grade disinfectants.
IP32, rear: protected against dripping water and solid particles.
IK06: withstands 1 joule of impact energy for high-traffic clinical environments.
Protection Glass: 3.1 mm with anti-reflection and anti-fingerprint coatings.
Weight: 34.8 kg, so verify boom arm or ceiling pendant weight capacity.
Dimensions: 1,283.4 by 768.5 by 68.3 mm.
VESA: 200 by 200 mm and 300 by 300 mm are supported, and a stand is not included.
Regulatory Compliance and Safety
The LG 55MH5K is FDA Class I registered and is built to IEC 60601-1 and IEC 60601-1-2, with EN 60601-1 and EN 60601-1-2 conformity and cUL listing. Medical Outfitters is an ISO 13485:2016 certified supplier of medical imaging equipment, so every unit ships through a documented and audited quality management system. Full compliance documentation is available in the expandable sections below.
FDA Class I: registered as a Class I medical device with the United States FDA, suitable for use in hospital operating rooms and clinical environments.
EN 60601 and CE marking: conforms to EN 60601-1 and EN 60601-1-2, the European harmonized standards for medical electrical equipment, the basis for CE marking.
ISO 13485: manufactured under ISO 13485 quality standards, and Medical Outfitters is independently ISO 13485:2016 certified as a medical imaging equipment supplier.
IEC 60601-1: meets the general safety requirements for medical electrical equipment.
IEC 60601-1-2: meets the electromagnetic compatibility requirements, so the monitor does not interfere with other operating room equipment, patient monitors, or AV control systems.
IEC 60950-1 and IEC 55032 and 55024: additional safety and EMC conformity.
cUL: UL Listed to ANSI/AAMI ES 60601-1 and CSA C22.2 No. 60601-1 for the United States and Canada.
FCC: FCC Part 15 Class A.
RoHS: compliant with the Restriction of Hazardous Substances directive.
REACH: compliant with the European Union REACH chemical regulation.
WEEE: compliant with the European Union Waste Electrical and Electronic Equipment directive.
Power: 100 to 240 Vac, 50/60 Hz, maximum 180 W, with DC Off mode less than 0.3 W.
Compatibility & AV Integration Review
Provide your laparoscopic tower model, boom arm specifications, SDI routing distances, and PACS system requirements. Our team confirms full compatibility with your existing operating room AV equipment before your order ships.
Hospital Procurement & RFP Support
Volume pricing, technical documentation, and logistics coordination for multi-OR deployments. We support biomedical engineers, operating room directors, and hospital purchasing departments sourcing surgical display equipment. Contact us for RFP packages.
Frequently Asked Questions
Quick answers to the most common purchase and technical questions about this large-format surgical display. Tap any question to expand.
The LG 55MH5K is a 55-inch 4K UHD IPS surgical display with 680 cd/m2 brightness, a DCI-P3 86 percent color gamut, HDR10, and a 178 degree wide viewing angle. It provides a single 12G-SDI input with 12G-SDI, DisplayPort, and DVI-D loop-through outputs, an automatic failover input switch with restore, up to 4PBP and PIP multi-view, DICOM compliance with LG Calibration Studio hardware calibration, protection glass with anti-reflection and anti-fingerprint coatings, and IP45 front, IP32 rear, and IK06 protection. It is FDA Class I registered.
Pricing varies by quantity and installation scope. Medical Outfitters returns a quote within one business day. Submit a request online or call (305) 885-4045.
The large 55-inch 4K canvas lets the entire surgical team view the procedure clearly without crowding around a smaller monitor. It improves team collaboration, supports up to 4PBP multi-source layouts, and provides an immersive view of endoscopic, laparoscopic, and navigational feeds from any position in the operating room.
You designate a primary input and a backup input in the monitor settings. If the primary signal is lost, the 55MH5K automatically switches to the backup source across HDMI, SDI, DVI, or DisplayPort, with no manual intervention. When the primary signal returns, the display automatically restores the main source. In a live surgical environment this eliminates blank-screen events during procedures.
Yes. The LG 55MH5K is FDA Class I registered and is built to the IEC 60601-1 and IEC 60601-1-2 medical electrical safety and electromagnetic compatibility standards, with EN 60601-1 and EN 60601-1-2 conformity and cUL listing for the United States and Canada.
Yes. The 55MH5K is DICOM compliant and supports hardware calibration through LG Calibration Studio, which maintains the calibrated grayscale response for consistent medical image viewing.
No. The 55MH5K is designed for surgical boom arm, ceiling pendant, or wall mounting. It supports VESA 200 by 200 mm and 300 by 300 mm patterns and weighs 34.8 kg, so verify your boom arm or pendant weight capacity. Our team can advise on compatible mounting solutions.
Through Medical Outfitters Inc., an ISO 13485:2016 certified supplier based in Miami, FL. We supply factory-new units with nationwide installation support. Call (305) 885-4045 or request a quote online.
Compatible Equipment
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