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Compact black rectangular docking station with DVI, HDMI, Ethernet, six USB ports and audio jacks

Diamond Multimedia

Diamond Multimedia DS3900V2 docking station

SKU CH-K0XE-SARGM MPN DS3900V2 GTIN 757448024319

Connects a notebook or tablet to dual displays, gigabit Ethernet, audio and six USB ports through a single USB 3.0 cable

  • Port detailsConnectors: DVI HDMI RJ-45 Gigabyte Ethernet Port USB 2.0 Po
  • Measurements1.3 in × 3.4 in × 8.8 in
  • Product weight1 lb (0.45 kg)
  • Key featuresSystem Requirements: Compatible with Microsoft Windows 8.1,
  • Connect two external displays via DVI and HDMI ports
  • Add wired Gigabit Ethernet through the RJ-45 connector
  • Six USB ports include two USB 3.0 and four USB 2.0
  • 5 mm audio line-out and microphone input built in
  • Compact 1.30 x 3.40 x 8.80 inch design weighs 1.00 lbs

Dual-video USB 3.0 docking station

The Diamond Multimedia DS3900V2 connects to a notebook or desktop PC through a single USB 3.0 B port and adds two external displays via HDMI and DVI. It also provides four USB 2.0 ports, two USB 3.0 ports, gigabit Ethernet, 3.5 mm line-out and microphone input, plus a DC power jack for the included adapter. The DisplayLink DL-3900 chipset handles video over the USB link, so no native video output on the host is required.

Passive cooling and bus-powered peripherals

The enclosure measures 1.30 x 3.40 x 8.80 inches and weighs 1.00 lbs with no moving parts, so it runs silently on a desk. Each USB 2.0 port delivers up to 2.0 A and each USB 3.0 port up to 3.0 A for charging phones or powering portable drives. The gigabit Ethernet port negotiates at line rate without adding audible coil whine, and the external power adapter keeps the dock within its thermal envelope during typical office workloads.

Sustained multi-display and data loads

Under continuous dual-monitor use the DisplayLink driver compresses video over the USB 3.0 link, so sustained throughput depends on host CPU capacity and available USB bandwidth rather than a dedicated GPU. Heavy file transfers across the two USB 3.0 ports and the gigabit Ethernet port share the same 5 Gbit/s upstream connection, which can become the limiting factor. The dock supports Windows 7, 8, 8.1 and macOS with a 1.2 GHz processor, SSE2 support and 30 MB free disk space for the driver package.

How it compares

Measured against everything we stock in USB-C & Laptop Docking Stations, at today’s prices. Recalculated every night.

Price $71.99
Cheaper than about 55% of the 1,970 comparable items (median $81.99).

Specifications

Product
Brand nameDiamond Multimedia
Model nameDS3900V2
Size & build
Measurements1.3 in × 3.4 in × 8.8 in
Product weight1 lb (0.45 kg)
Shipping weight1.04 kg
Package size25 × 25 × 25 mm

Questions about this item

How do I install the DS3900V2 and which step do people often miss?

Connect the dock to your notebook using the USB 3.0 B cable, install the DisplayLink DL-3900 driver before attaching monitors, then plug the DC power adapter into the jack. The step most people skip is installing the driver first — without it the DVI and HDMI outputs stay dark.

What maintenance or replacement will the DS3900V2 need later?

The unit has no user-serviceable parts or internal battery. Maintenance is limited to keeping the RJ-45 Gigabit Ethernet, six USB ports (four USB 2.0, two USB 3.0), DVI, HDMI and 3.5 mm audio connectors free of dust. If the external power supply fails, replace it with an equivalent DC adapter.

What limit appears first during sustained heavy use of the DS3900V2?

The DisplayLink DL-3900 chipset shares the host's single USB 3.0 uplink, so continuous high-resolution video on both displays plus heavy USB 3.0 disk traffic will saturate that 5 Gbps link before the dock's own ports or Gigabit Ethernet reach their individual ceilings.

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