StarTech.com FD121-KVM-EXTENDER · KVM extender

MPN / P/N

FD121-KVM-EXTENDER

Manufacturer designation

DisplayPort KVM Extender over Fiber Optic, 4K 60Hz, Console Extender Kit, Up to 984ft/300m (Multi-mode) with Pre-installed SFP+ Modules, 3x USB HID - TAA

Special Notes

SFP+ slots support MSA-compliant SFP+ modules; Pre-installed multi-mode SFP+ modules are interchangeable; with single-mode SFP+ modules for compatibility with; single-mode fiber cabling

Power Source

AC Adapter Included

Input Voltage

100 - 240 AC

Input Current

0.3A

Output Voltage

5 DC

Output Current

2 A

Power Consumption

10W

Colour

Black

Material

Metal

Product length

4.5 in [11.4 cm]

Width

3.1 in [78.0 mm]

Height

1.1 in [28.0 mm]

Weight

18.5 oz [525.0 g]

Operating Temperature

0C to 50C (32F to 122F)

Storage Temperature

-10C to 60C (14F to 140F)

Humidity

0% ~ 80% RH (non-condensing)

IP Control

No

Hot-Key Selection

No

Port Selection Support

Not Applicable

On-Screen Display

No

Auto Scan

None

MTBF

156,000 Hours

Audio Specifications

DisplayPort - 2 Channel Audio

Supported Resolutions

4096 x 2160 @ 60hz; 3840 x 2160 @ 60hz; 3440 x 1440 @ 60hz; 3200 x 1800 @ 60hz; 3072 x 1728 @ 60hz; 2560 x 1440 @ 60hz; 2048 x 1536 @ 60hz; 1920 x 1200 @ 60hz; 3840 x 1080 @ 60hz; 1920 x 1080 @ 60hz; 1760 x 990 @ 60hz; 1680 x 1050 @ 60hz; 1600 x 1200 @ 60hz; 1600 x 900 @ 60hz; 1440 x 900 @ 60hz; 1366 x 768 @ 60hz; 1280 x 1024 @ 60hz; 1280 x 720 @ 60hz; 1128 x 634 @ 60hz; 1024 x 768 @ 60hz; 800 x 600 @ 60hz; Other resolutions may be supported

Video Revision

DisplayPort 1.2

Wide Screen Supported

Yes

Audio

Yes

Number of KVM Ports

1

Supported Platforms

USB

PC Video Type

DisplayPort

Number of Monitors Supported

1

Rack-Mountable

No

Cables Included

No

LED Indicators

2 - Status; 2 - USB HID

Host Connector 1 (Quantity)

1

Host Connector 1

DisplayPort

Host Connector 2 (Quantity)

1

Host Connector 2

USB Mini-B (480Mbps, 2.5W)

Host Connector 3 (Quantity)

1

Host Connector 3

USB Mini-B (480Mbps, 2.5W)

Connector 1 (Quantity)

1

Connector 1

SFP+ Slot

Connector 2 (Quantity)

3

Connector 2

USB-A (1.5Mbps, 2.5W)

Connector 3 (Quantity)

1

Connector 3

DisplayPort

Connector 4 (Quantity)

1

Connector 4

USB Mini-B (480Mbps, 2.5W)

Selection limits

Match the exact connector standards, host features, supported OS/driver requirements and power-supply version. Manufacturer maximum throughput, resolution/refresh and Power Delivery ratings are conditional limits, not a universal result. Match host/console video ports, host count, monitor count and EDID/USB requirements. A KVM extender is not automatically a standalone multi-computer KVM switch. Secure models require exact security/certification documents; no new certification is asserted here.

Specification source: StarTech.com ↗
Checked against documentation: 16.10.2026