This article covers MINISFORUM ESP4B PCIe拡張カード.

Overview

The MINISFORUM ESP4B is a PCIe expansion card that adds four NVMe M.2 SSD slots, one OCuLink port, and one USB 3.2 Gen 2x2 port to your system. It's designed for users who need extra high-speed storage or want to connect external devices with minimal latency.
This card is especially useful for Mini PCs and laptops where internal storage expansion is limited. With PCIe 4.0 support, it can take advantage of the latest NVMe SSDs to deliver fast data transfer speeds.
Measuring just 80 mm in length, 20 mm in width, and 180 mm in height, and weighing about 300 grams, the ESP4B is compact enough to fit into most builds without taking up too much space.

Connectivity & Compatibility

The ESP4B uses a PCIe 4.0 x4 interface, so it works with desktop PCs that have an available PCIe slot, as well as Mini PCs that support PCIe expansion units.
Here's what you get on the card:

  • Four NVMe M.2 SSD slots (each can hold an NVMe drive)
  • One OCuLink port for connecting external storage or expansion boxes
  • One USB 3.2 Gen 2x2 port with up to 20 Gbps transfer speed
    Before buying, check the M.2 slot specifications (such as 2230, 2242, 2260, or 2280 sizes) and make sure your motherboard's BIOS recognizes the card. Also, verify that your PCIe slot provides enough bandwidth for the card to operate at full speed.

Product Info

Check the retailer's page for the latest price.
For details on included accessories and warranty, refer to the official product page or the retailer listing. Compared to other expansion cards, the ESP4B stands out with its combination of M.2 slots, OCuLink, and USB 3.2 Gen 2x2, making it a versatile choice for storage expansion.

Best Use Cases

  • Creative professionals who edit videos or render 3D scenes and need fast, large-capacity storage. With multiple NVMe SSDs, you can speed up read/write operations for working files.
  • Users who are unhappy with the limited storage of their Mini PC or laptop. By connecting the ESP4B via a PCIe expansion unit, you can easily add NVMe SSDs.
  • Those who want to use OCuLink-compatible external storage. The ESP4B's OCuLink port allows you to connect high-speed external drives.
  • On the other hand, if your PC has no free PCIe slots or your M.2 slots don't match the card's specifications, installation may be difficult, so check compatibility beforehand.

Product Disclosure (Amazon)

  • Manufacturer: MINISFORUM
  • Seller: MINISFORUM JP直営店
  • Fulfilled by: Amazon
  • ASIN: B0HJVKLFHB
  • Note: This article covers a manufacturer-made product based on Amazon listing details.