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Promise Technology SATA300 TX4302 dual-port eSATA controller card with bracket

Promise Technology

Promise Technology SATA300 TX4302 2PORT Esata Ext & Int 2 in 1 accessory

SKU CH-88BC-ZT7NS

Adds two internal and two external 3Gb/s SATA ports with hot-plug eSATA, NCQ, TCQ and 66MHz PCI bandwidth up to 266MB/s

  • Add up to four SATA 3G drives with two internal and two external ports
  • Hot-plug eSATA outperforms USB or 1394 connections for faster transfers
  • Each controller handles up to 2TB total storage across four ports
  • Native and Tagged Command Queuing boost drive efficiency
  • 66MHz PCI bus delivers up to 266MB/s bandwidth

Two-port eSATA and internal SATA combo

The Promise Technology SATA300 TX4302 provides two external eSATA ports and two internal SATA ports in a single bracket. It connects through a 66 MHz PCI slot and delivers up to 266 MB/s of host bus bandwidth. Builders adding hot-plug external drives and internal SATA disks to a desktop or workstation use this card.

Four drives at 3 Gb/s with 2 TB per controller

Each SATA channel runs at 3 Gb/s and the card supports up to four drives in total. The onboard controllers address up to 2 TB per controller and handle drives larger than 137 GB through large LBA support. Native Command Queuing and Tagged Command Queuing are supported, but the 3 Gb/s link limits throughput on modern SSDs.

Replaces separate internal and external brackets

This accessory consolidates an internal SATA bracket and an external eSATA bracket into one half-height card. It suits owners of 3 Gb/s SATA drives who need both internal and hot-plug external connections without occupying two slots. Buyers requiring 6 Gb/s SATA or more than four ports should look elsewhere.

How it compares

Measured against everything we stock in 2-in-1 Device Accessories, at today’s prices. Recalculated every night.

Price $75.99
Pricier than about 64% of the 7,473 comparable items (median $56.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will the TX4302 work with my older 500GB SATA drives that are under the 137GB LBA limit?

Yes, it supports up to 500GB per drive across four ports and includes large LBA support for drives above 137GB.

How can I verify the card is transferring data at 3Gb/s after installing it in a 66MHz PCI slot?

The onboard disk activity LED headers will flash during read and write operations, confirming active data transfer on the SATA channels.

Does the package include cables for both the 2 internal and 2 external eSATA ports?

A SATA cable is included for the internal ports; cables for the two external eSATA ports must be purchased separately.

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