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CablesOnline 2-Way A/B RJ45 Metal Rotary Manual Switch Box (SB-034)
CABLESONLINE.COM ATLANTIC COMPUTERTECH

CablesOnline 2-Way A/B RJ45 Metal Rotary Manual Switch Box (SB-034)

Bottom line: The CablesOnline 2-Way A/B RJ45 Metal Rotary Manual Switch Box ($29.50 on Amazon as of 2026-10-21 16:15 UTC): Rotary knob switches one RJ45 line between two devices with no cable swapping; main trade-off: manual only, so you cannot switch it remotely or on a schedule.

$29.50

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Buy on Amazon — $29.50 Compare to similar kvm switches

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Rotary knob switches one RJ45 line between two devices with no cable swapping
  • ✓ Knob position shows at a glance which port is active
  • ✓ Fully shielded metal case holds up better than plastic A/B boxes
  • ✓ Anti-skid rubber feet keep it planted and protect desk surfaces
  • ✓ Rated for Ethernet and digital 8-conductor telephone 8P8C lines

Cons

  • ✗ Manual only, so you cannot switch it remotely or on a schedule
  • ✗ Only two device ports, which limits larger multi-machine setups
  • ✗ Rated Ethernet speed is not stated in the product details
  • ✗ Patch cables are not listed as included in the 1-piece package

Manufacturer description

The CablesOnline SB-034 is a 2-way A/B RJ45 manual switch box. It lets you move one network connection between two RJ45 (8P8C) Ethernet devices by turning a rotary knob. You don't need to swap cables or reach behind a desk. That suits a retro PC bench, a homelab shelf or a desk where two machines share one wall jack. The rotary selector is fully manual, so you always know which port is live from where the knob points. It has no software, drivers or configuration screens. CablesOnline describes the box as suitable for network, Ethernet and digital 8-conductor telephone lines, so it covers…

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SpecPicks Verdict

SpecPicks scored CablesOnline 2-Way A/B RJ45 Metal Rotary Manual Switch Box using a rating × review-volume × price-fit model applied to published specs and reviews across the kvm switches category. CABLESONLINE.COM ATLANTIC COMPUTERTECH's kvm switches lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for kvm switches of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How many devices can I connect to the CablesOnline SB-034?

It is a 2-way A/B switch. It routes one common RJ45 connection to either of two RJ45 devices, selected by the rotary knob.

Does this switch work for both Ethernet and phone lines?

Yes. CablesOnline describes the SB-034 as a switch for RJ45 8P8C network and Ethernet lines and also for digital 8-conductor telephone lines.

Does the SB-034 support Gigabit Ethernet?

The product details do not state a rated Ethernet speed. Check the current product listing or contact CablesOnline before relying on it for a specific link speed.

Is the housing plastic or metal?

It uses a fully shielded metal casing, with anti-skid rubber feet on the bottom to keep it from sliding and to prevent scratches on your work surface.

Are Ethernet cables included in the box?

The listing specifies a quantity of one switch box, part number SB-034, and does not list cables as included. Plan on supplying your own RJ45 patch cables.

Key Features

  • 2-Way RJ45 Ethernet Network AB Switch
  • Switch between 2 RJ45 (Network/Internet) Ethernet devices.
  • High Quality Fully Shielded Metal Casing.
  • Anti-Skid rubber feet protect work surfaces from damage/scratches
  • CablesOnline Part Number: SB-034

Full Specifications

BrandCABLESONLINE.COM ATLANTIC COMPUTERTECH
ModelSB-034
MaterialMetal
TerminalSolder
Unit Count1 Count
Part NumberSB-034
Switch TypeRotary
Circuit Type2-way
Contact TypeRj45
Control Typemanual
Actuator TypeRotary
CompatibilitySwitch
Material TypeMetal
Mounting TypeRack Mount
Connector TypeRj 45
Control MethodTouch
Operation ModeManual
Item Dimensions6.5 x 5 x 2.8 inches
Number of Items1
Contact MaterialCopper

Ready to buy?

CablesOnline 2-Way A/B RJ45 Metal Rotary Manual Switch Box (SB-034) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $29.50

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

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CablesOnline 2-Way A/B RJ45 Metal Rotary Manual Switch Box (SB-034)
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