Card Adapter StarTech.com ECUSB3S254F

Name: Card Adapter StarTech.com ECUSB3S254F ECUSB3S254F
Brand: StarTech
SKU: 341239
Price: 50.99 EUR
Availability: InStock

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Offer for legal entity, cashless payment. Why is an item available only for a legal entity?
This is due to long delivery times and limited product warranties.

Short description

The StarTech.com 2 Port Flush Mount ExpressCard 54mm SuperSpeed USB 3.0 Card Adapter with UASP Support offers a reliable solution for expanding USB connectivity. It features a host interface of ExpressCard and provides two USB 3.2 Gen 1 ports for high-speed data transfer. The NEC uPD720200 chipset ensures optimal performance, while its compact dimensions (54mm width, 74mm depth, 5mm height) make it easy to install. Compatible with Windows 10 Education and Enterprise editions, this adapter is perfect for users needing efficient USB connections.

Available for order: 2 pcs.

Warranty: 2 Years

SKU: 341239

Manufacturer: StarTech

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1.99 €

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

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From 4.99 € (Weight: 0.10 kg)

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Product information

Description

The StarTech.com ECUSB3S254F 2-Port Flush Mount ExpressCard Adapter adds two USB 3.2 Gen 1 (USB 3.0) ports to laptops with a 54 mm ExpressCard slot, providing SuperSpeed data transfers up to 5 Gbps while remaining backward compatible with USB 2.0 and USB 1.x devices. The adapter is designed to sit flush with the laptop chassis to reduce the risk of impact damage and can stay installed during transport. It incorporates the NEC uPD720200 chipset and supports UASP (USB Attached SCSI Protocol) for improved performance when used with a UASP-capable enclosure and a compatible operating system.

Advantages

The flush-mount design minimizes protrusion from the laptop and protects both the card and the ExpressCard slot. UASP support enables significantly faster transfer speeds and lower CPU utilization compared with conventional USB BOT operation when paired with a compatible enclosure and OS. The adapter offers broad compatibility with older USB standards and small physical dimensions for convenient, long-term installation.

Suitable for

Adding two external SuperSpeed USB 3.2 Gen 1 ports to ExpressCard-enabled laptops
Connecting external storage devices (SSD/HDD) and USB peripherals
Users who need a low-profile, transport-safe USB expansion

Key specifications

Model: StarTech.com ECUSB3S254F
Interface: ExpressCard (54 mm)
Output: 2 × USB 3.2 Gen 1 (SuperSpeed USB, up to 5 Gbps)
Backward compatibility: USB 2.0 (up to 480 Mbps), USB 1.1/1.0
Chipset: NEC uPD720200
UASP support: Yes (requires compatible enclosure and OS)
Dimensions (W×D×H): 54 mm × 74 mm × 5 mm
Weight: 0.0238 kg
Colour: Black

How to use

Insert the ECUSB3S254F into the laptop's 54 mm ExpressCard slot until it sits flush with the chassis. Install any required drivers provided by the operating system or the manufacturer. Connect USB devices to the two SuperSpeed ports. To benefit from UASP performance improvements, use a UASP-enabled enclosure and a compatible operating system (for example, Windows 8 or later) and ensure drivers support UASP.

Usage recommendations

For best performance with storage devices, pair the adapter with a UASP-capable external enclosure and a UASP-supported OS. Keep the card installed during transport to maintain a low-profile configuration, but avoid exposing the exposed edge to direct mechanical impact.

Specifications

Internal: The product is built in.: Yes
Host interface: Interface that enables a host controller to communicate with a driver.: ExpressCard
Output interface: The socket (port) where the output connectors are connected.: USB 3.2 Gen 1 (3.1 Gen 1)

All features

Weight & dimensions

Package weight: Weight of the packaged product.: 105 g
Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.: 0.0238 kg
Height: The measurement of the product from head to foot or from base to top.: 5 mm
Depth: The distance from the front to the back of something.: 74 mm
Width: The measurement or extent of something from side to side.: 54 mm

Operational conditions

Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.: -65 - 125
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.: 0 - 85

System requirements

Compatible operating systems: List of desktop operating systems tested as compatible with this product.: Windows XP(32/64-bit)/ Server 2003(32/64-bit)/ Vista(32/64-bit)/ Server 2008 R2/ 7(32/64-bit)
Windows operating systems supported: Windows vesions wich can be used with the device.: Windows 8.1 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows 10 Pro x64, Windows XP Professional x64, Windows XP Professional, Windows XP Home x64, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 Pro, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate

Logistics data

Harmonized System (HS) code:: 84733020

Packaging data

Package height: The distance from the top to the bottom of the packaging.: 31 mm
Package depth: The distance from the front to the back of the packaging.: 145 mm
Package width: The distance from one side of the packaging to the other.: 175 mm

Design

Product colour: The colour e.g. red, blue, green, black, white.: Black
Internal: The product is built in.: Yes

Ports & interfaces

USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:: 2
Host interface: Interface that enables a host controller to communicate with a driver.: ExpressCard
Output interface: The socket (port) where the output connectors are connected.: USB 3.2 Gen 1 (3.1 Gen 1)

Performance

Chipset: Set of electronic components in an integrated circuit that manages the data flow between the processor, memory and peripherals. It is usually found in the motherboard of a computer. Chipsets are usually designed to work with a specific family of microprocessors. Because it controls communications between the processor and external devices, the chipset plays a crucial role in determining system performance.: NEC uPD720200
Data transfer rate: Rate at which data can be transferred. Usually expressed in units per second. May vary with network configurations.: 5 Gbit/s

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Customer questions

FAQ

How much does the Card Adapter StarTech.com ECUSB3S254F cost, and is it available for purchase?

The price is 50.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.10.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All StarTech products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized StarTech service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: internal, host interface, output interface, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

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Card Adapter StarTech.com ECUSB3S254F

Short description

Product information

Description

Advantages

Suitable for

Key specifications

How to use

Usage recommendations

Specifications

Weight & dimensions

Operational conditions

System requirements

Logistics data

Packaging data

Design

Ports & interfaces

Performance

Description

Similar products

Product comparison

Customer reviews

Customer questions

How much does the Card Adapter StarTech.com ECUSB3S254F cost, and is it available for purchase?

If I order this product today, when will I receive my order?

What payment options are available?

Can this product be purchased for a company (with VAT)?

What is the warranty period?

Can the product be returned after purchase?

Where should I contact for warranty service?

How can I tell if this product suits my needs?