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White plastic 2.5 inch SATA drive enclosure with sliding cover

Orico

Orico 2521U3 2.5" SATA drive enclosure

SKU CH-ZNCB-2BB9P MPN 2521U3

A tool-free 2.5-inch SATA enclosure with USB 3.0 and UASP for drives up to 9.5 mm thick

  • ColorWhite
  • Size2.5"
  • TypeEnclosure
  • MaterialPlastic
  • Internal InterfaceSATA I/II/III
  • External InterfaceUSB 3.0
  • Tool-free installation lets you swap drives in seconds
  • USB 3.0 Micro-B interface delivers 5 Gbps transfer speeds
  • Supports 2.5-inch SATA drives up to 9.5 mm thick
  • Works driver-free with Windows, macOS and Linux
  • Compact 128 mm by 80 mm by 15 mm plastic case

Tool-free 2.5" SATA enclosure

The Orico 2521U3 is a plastic case that turns a single 2.5-inch SATA hard drive or SSD into an external USB 3.0 drive. It accepts drives from 7 mm to 9.5 mm thick and works without drivers on Windows, macOS and Linux. The sliding cover snaps shut without screws so swapping drives takes seconds. ||

USB 3.0 5 Gbps limit with UASP

The external link is USB 3.0 Micro-B running at 5 Gbps and the bridge chip supports UASP for lower overhead on random transfers. Real-world throughput is still capped by the USB 3.0 bus, so sustained sequential speeds will not exceed that ceiling. The enclosure only speaks SATA I, II or III; IDE drives cannot be used. ||

ABS plastic shell with internal sponge

The white ABS body resists heat and minor impacts while a 5 mm sponge pad cushions the mounted drive against vibration. The shallow 15 mm height keeps the unit slim for bag carry, and the single-bay layout means only one drive is powered at a time. Builders needing RAID arrays or IDE support must look elsewhere.

Highlights

  • Tool-free installation lets you swap drives in seconds
  • USB 3.0 Micro-B interface delivers 5 Gbps transfer speeds
  • Supports 2.5-inch SATA drives up to 9.5 mm thick
  • Works driver-free with Windows, macOS and Linux
  • Compact 128 mm by 80 mm by 15 mm plastic case

Specifications

BrandORICO
Series2520U3
Model2520U3
ColorWhite
Size2.5"
TypeEnclosure
MaterialPlastic
Internal InterfaceSATA I/II/III
External InterfaceUSB 3.0
HDD Count SupportedSingle HDD
Number of Bay1 Bay
Maximum Capacity (per Bay)Up to 6TB
Specifications2.5 inch USB3.0 Hard Drive Case
Operating Systems SupportedTool-free, Driver-free, Compatitable with Windows XP/7/8/10, MAC OS and Linux
Dimensions128mm(L)*80mm(W)*15mm(H)

Questions about this item

Which capacity limit should I plan for when choosing a drive for the Orico 2521U3?

The enclosure supports a single 2.5" SATA drive up to 6 TB according to the specifications, although some highlights mention 4 TB.

What real-world throughput can I expect from the USB 3.0 connection on this enclosure?

The USB 3.0 Micro-B port is rated at 5 Gbps and uses the NS1068X controller with UASP, so actual transfer speeds will be limited by the drive and the host controller.

Does the USB 3.0 interface cap the speed of a SATA III SSD in the 2521U3?

Yes, the 5 Gbps USB 3.0 link is slower than the 6 Gbps SATA III bus, so a fast SATA SSD will be bottlenecked by the external connection.

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