Blackbox · Adapters & Converters

Blackbox USB to RS422/485 Converter with Opto-Isolation

Blackbox USB to RS422/485 Converter with Opto-Isolation is available at $295.99 partner price. Supplied through authorized US distribution with a written quote inside 48 hours.

Blackbox USB to RS422/485 Converter with Opto-Isolation (SP390A-R3) is a Adapters & Converters item in the Cables & Adapters range offered by Big Sky Dynamics. The adapters & converters classification within Cables & Adapters is the only grouping the record for SP390A-R3 carries. Match SP390A-R3 to your bill of materials so the adapters & converters configuration fits the build.

$295.99 partner price List $310.99

Partner pricing from authorized-distributor cost. Sales tax and freight are quoted separately. The price shown is the current partner price. Stock and lead time are confirmed in writing on the quote; where the exact model is constrained we will offer a named alternative.

Why buyers pick this part

• Prices come from live distributor cost, not a static list.
• One quote can cover the server, power, rack, cabling and services around it.
• A named desk answers the quote — no ticket queue.

Specifications

Specifications are the fields the distributor record actually carries for this part number. If you need a manufacturer datasheet or a compatibility check before ordering, the procurement desk confirms it on the quote.