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HP Serial Port Flex IO V3 expansion card, green PCB with metal bracket and DB9 port

HP

HP Serial Port Flex IO V3 5B895AA expansion card

SKU CH-WXQP-EGDCR

Adds a serial port to compatible HP EliteDesk and ProDesk desktops via PCI Express

  • Product typePCI Express to Serial Port Card
  • Adds a serial port via PCI Express for legacy devices
  • Compatible with EliteDesk 800 G6 tower, SFF and DM models
  • Compatible with EliteDesk 805 G6 SFF and DM models
  • Compatible with ProDesk 600 G6 MT, SFF and DM models
  • New condition ensures reliable out-of-the-box operation

HP Serial Port Flex IO V3

The HP Serial Port Flex IO V3 5B895AA is a PCI Express to Serial Port Card designed for compatible HP desktops. It adds a legacy serial connection to systems that no longer include one natively. This new expansion card targets IT departments maintaining older peripherals. Installation uses a standard PCI Express slot.

Compatible HP desktops and limitations

The card fits EliteDesk 800 G6 TWR, SFF and DM models, EliteDesk 805 G6 SFF and DM, plus ProDesk 600 G6 MT, SFF and DM. Builders using other chassis, different generations or non-HP motherboards should look elsewhere. Buyers who need multiple serial ports or a different interface will not be served by this single-port design.

PCI Express serial interface decides fit

The sole specification that determines compatibility is the PCI Express to Serial Port Card type. If the target system lacks a free PCI Express slot or requires a different bus, this part will not work. No other technical detail overrides this requirement.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $28.99
Typical for this category: the median of 891 items is $30.99.

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Specifications

Product
Brand nameHP
Product typePCI Express to Serial Port Card

Questions about this item

How do I install the HP Serial Port Flex IO V3 5B895AA into an EliteDesk 800 G6 SFF, and what step is often missed?

Insert the card into a free PCI Express slot, secure the bracket, then connect the internal flex cable to the motherboard Flex IO header; the step often missed is seating that flex cable fully before closing the chassis.

What maintenance or replacement will the HP Serial Port Flex IO V3 5B895AA need later?

The card has no moving parts or consumable components, so no scheduled maintenance is required; replacement is only necessary if the card itself fails.

What limit appears first when the HP Serial Port Flex IO V3 5B895AA runs under sustained serial traffic?

The practical limit is the UART buffer and the serial protocol's baud rate; sustained loads above the configured baud setting will cause data loss before the PCI Express interface saturates.

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