A hard disk enclosure is a specialized casing designed to hold and power hard disks while providing a mechanism to allow them to communicate to one or more separate computers.
HPE ProLiant DL300 Gen10 Plus 2U 8SFF x4 Tri‑Mode 24G U.3 BC Front Drive Cage Kit HDD/SSD enclosure 2.5

HPE ProLiant DL300 Gen10 Plus 2U 8SFF x4 Tri‑Mode 24G U.3 BC Front Drive Cage Kit HDD/SSD enclosure 2.5"

Hewlett Packard Enterprise
£411.99
Lexar E6 SSD enclosure Silver M.2

Lexar E6 SSD enclosure Silver M.2

Lexar
£22.99
Synology RX6025sas HDD enclosure Black 2.5/3.5

Synology RX6025sas HDD enclosure Black 2.5/3.5"

Synology
£8,225.99
Lindy USB 3.2 Gen 2x2 Dual M.2 NVMe SSD Enclosure with Clone Feature

Lindy USB 3.2 Gen 2x2 Dual M.2 NVMe SSD Enclosure with Clone Feature

Lindy
£99.99
i-tec MySafe USB 3.0 / USB-C 3.1 Gen. 2, External case

i-tec MySafe USB 3.0 / USB-C 3.1 Gen. 2, External case

i-tec
£24.99
i-tec MySafe USB 3.0 Easy 2.5

i-tec MySafe USB 3.0 Easy 2.5" External Case – White

i-tec
£16.99
i-tec MySafe USB 3.0 Easy 2.5

i-tec MySafe USB 3.0 Easy 2.5" External Case – Black

i-tec
£16.99
i-tec MySafe USB-C 3.1 Gen. 2 easy

i-tec MySafe USB-C 3.1 Gen. 2 easy

i-tec
£21.99
Manhattan M.2 NVMe SSD Enclosure, USB-C Female Connection, 10 Gbps (USB 3.2 Gen2 aka USB 3.1), UASP-compliant, SuperSpeed+ USB, Aluminum, Black, Three Year Warranty

Manhattan M.2 NVMe SSD Enclosure, USB-C Female Connection, 10 Gbps (USB 3.2 Gen2 aka USB 3.1), UASP-compliant, SuperSpeed+ USB, Aluminum, Black, Three Year Warranty

Manhattan
£27.99
ADATA EC600-BCBK storage drive enclosure HDD/SSD enclosure Black 2.5

ADATA EC600-BCBK storage drive enclosure HDD/SSD enclosure Black 2.5"

ADATA
£20.99
OWC Mercury Elite Pro White 2.5

OWC Mercury Elite Pro White 2.5"

OWC
£78.99
OWC Mercury Elite Pro Quad HDD enclosure Silver 2.5/3.5

OWC Mercury Elite Pro Quad HDD enclosure Silver 2.5/3.5"

OWC
£336.99