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Kramer 676R

1:1 4K60 4:4:4 HDMI 2.0 and RS-232 Receiver over Ultra-Reach MM/SM Fibre Optic
Max. 3km {MM}, 30km {sm}, Max. bandwidth 18Gbps

£899 (£1078.80 inc. VAT)
Availability: In stock

Kramer 676R (50-167690) Description

The Kramer 676R is a high-performance HDMI fibre receiver for ultra-reach extension of 4K@60Hz (4:4:4) HDMI signals. 676R receives the transmitted optical signal from a compatible transmitter and converts it to an HDMI and RS-232 signals. 676R includes a multi-mode SFP+ transceiver, but can be used with any Kramer certified SFP+ transceiver, such as a single-mode SFP+ transceiver.
See also: Kramer 676T.
  • High Performance Standard Fibre Extender — HDMI fibre transmitter for providing ultra–reach signals over either multi–mode or single–mode optical fibre infrastructures, using Kramer pluggable OSP SFP+ units (multi–mode SFP+ included). Near–zero latency video chroma sub–sampling conversion technology, is employed to auto–adapt above 10G HDMI signals to 10G optical link signal data–rate.
  • Note: To ensure specified performance, support, and warranty of this product, use only Kramer's certified hi–performance OSP SFP+ pluggable optical units.
  • Multi–drop Signal Distribution — Use optical splitters to extend the input signals from a single transmitter to multiple receivers, for displaying the same content on multiple display devices using optical splitting only, with no need for AV distribution amplifiers.
  • HDMI Signal Extension — HDCP 2.2 compliant and supports up to 18G (6G per channel) data rate, LPCM 7.1, Dolby True HD, and DTS–HD as specified in HDMI 2.0.
  • Power Saving — With CEC ON/OFF function, shut down a display device automatically when not in use, and auto power it ON upon presentation start.
  • I–EDIDPro™ Kramer Intelligent EDID Processing™ — Intelligent EDID handling, processing and pass–through algorithm that ensures Plug and Play operation for HDMI source and display systems.
  • Bidirectional RS–232 Extension — Serial interface data flows in both directions, to enable data transmission and control of devices.
  • Cost–Effective Maintenance — Status LED indicators for power, source, sink and fibre link connections detection facilitate easy local troubleshooting.
  • Easy Installation — DigiTOOLS® rack mountable fan–less enclosure enables side–by–side mounting of 3 units in a 1U rack space with the recommended rack adapter.
  • 7 year warranty (Click Here for details)

Kramer 676R Specifications

Inputs 1 × Fiber Optic: On LC connector(s)
Outputs 1 × HDMI On a female HDMI connector
Ports RS-232: On a 3–pin terminal block connector
USB: On a female micro USB connector for firmware upgrade


Max Bandwidth 18Gbps
Max Resolution 4096×2160@60Hz 4K@60 (4:4:4)
Compliance HDMI 2.0 and HDCP 2.2

Extension Line

Optical Fibre Multi–mode (MM) or single–mode (SM)
Optical Module Kramer 10Gbps SFP+ IEEE 802.3ae compliant modules (MM is included)

Multi-mode Line

Compliance G.651.1 OFNR fibre
Max Reach over OM3 MM Fibre 3km (1.8 miles)

Single-mode Line

Compliance G.652D OFNR fibre
Max Reach over OS1 SM Fibre 33km (20.5 miles)

Extended RS-232

Baud Rate 300 to 115200

User Interface

Indicators Source detection, sink detection, optical link and power LEDs
Controls Reset button


Consumption 380mA
Source 12V DC, 2A

Environmental Conditions

Operating Temperature 0° to +40°C (32° to 104°F)
Storage Temperature –40° to +70°C (–40° to 158°F)
Humidity 10% to 90%, RHL non–condensing

Regulatory Compliance (Standards Compliance)

Safety CE, UL
Environmental RoHs, WEEE


Size Tool
Type Aluminium
Cooling Convection ventilation


Included MM SFP+ transceiver, power adapter, power cord, mounting bracket set


Product Dimensions 12.00cm × 7.15cm × 2.44cm (4.72" × 2.81" × 0.96" ) W, D, H
Product Weight 0.2kg (0.5lbs) approx.
Shipping Dimensions 15.70cm × 12.00cm × 8.70cm (6.18" × .72" × 3.43" ) W, D, H
Shipping Weight 0.7kg (1.6lbs) approx.

Kramer 676R Usage Diagram

Kramer 676R Usage Diagram

Kramer 676R Replacement Power Supplies

ProductDescriptionPriceInc. VAT
Kramer PS-1202 12V/5A Desktop Power Supply with 75cm power cord £31 £37.20
Kramer PS-1205 Desktop Power Supply 12V/5A £49 £58.80
Kramer VA-102P12 10-Output 12v DC Power Supply MAX 10A - 1 Amp per channel £311 £373.20

Kramer 676R Optional Cables

DescriptionLengthPriceInc. VAT
Kramer CLS-2LC/OM3-33 2 LC Multimode LSHF fibre optic cable 10.0m £52 £62.40
Kramer CLS-2LC/OM3-66 2 LC Multimode LSHF fibre optic cable 20.0m £78 £93.60
Kramer CLS-2LC/OM3-98 2 LC Multimode LSHF fibre optic cable 30.0m £111 £133.20
Kramer CLS-2LC/OM3-164 2 LC Multimode LSHF fibre optic cable 50.0m £190 £228.00
Kramer CLS-2LC/OM3-328 2 LC Multimode LSHF fibre optic cable 100.0m £395 £474.00
Kramer CLS-2LC/OM3-558 2 LC Multimode LSHF fibre optic cable 170.0m £621 £745.20
Kramer CLS-2LC/OM3-656 2 LC Multimode LSHF fibre optic cable 200.0m £732 £878.40
More Cables for the Kramer 676R

Kramer 676R Possible Alternatives

Product CodeDescriptionPriceInc. VAT
Kramer 675R/T 1:1 4K60 4:4:4 HDMI 2.0 over fibre optic Extender Kit
Max. 3km {MM}, 30km {SM}; Max. Bandwidth 18Mbps
£1082 £1298.40
Kramer 676T 1:1 4K60 4:4:4 HDMI 2.0 and RS-232 Transmitter over Ultra-Reach MM/SM Fibre Optic
Max. 3km {MM}, 30km {sm}, Max. bandwidth 18Gbps
£899 £1078.80