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Silver aluminium four-bay desktop enclosure with front drive trays and a built-in fan

Yottamaster

Yottamaster PS400C3 4-bay drive enclosure USB 3.1 Gen1 Type-C 64TB

SKU CH-G1HM-YYTDA

Four-bay enclosure holds up to four 2.5 or 3.5 inch SATA drives with 16TB each for 64TB total, aluminium shell with 80mm fan, USB 3.1 Gen1 Type-C, 12V 6.5A power

  • Size2.5 in & 3.5 in
  • Drive interface2.5 in & 3.5 in
  • External connectionUSB 3.0 Type-C
  • Supported drivesWithout RAID
  • Bay count4 Bay
  • Max capacity per bayUp to 16 TB

External Interface USB 3.0 Type-C

HDD Count Supported Without RAID

Number of Bay · Model 4 Bay

  • Supports up to 64 TB of external storage with four drive bays
  • Each bay accepts a single drive up to 16 TB for massive capacity
  • Fits both 2.5" and 3.5" SATA HDDs or SSDs in one enclosure
  • Built-in 80 mm fan and aluminium shell provide active cooling
  • USB 3.1 Gen 1 Type-C interface delivers up to 6 Gbps transfer speed

Four-Bay Desktop Enclosure

This four-bay enclosure accepts 2.5-inch and 3.5-inch SATA hard drives or SSDs, providing up to 64 terabytes of external storage for home or office workloads. It connects through a USB 3.1 Gen 1 Type-C port and includes a 12 V 6.5 A power adapter for stable operation. An 80 mm fan and aluminium chassis keep drives cool during extended use.

USB 3.1 Gen 1 Bandwidth Limit

The USB 3.1 Gen 1 interface caps transfer rates at 5 Gbps, so sustained throughput will not exceed the bus limit even though the internal SATA links support 6 Gbps. The enclosure is backward compatible with USB 2.0 and USB 1.1 hosts, but performance drops to those slower standards. No RAID controller is present, so each drive appears separately to the operating system.

JBOD Upgrade From Single-Drive Docks

Users moving from a single-bay dock gain four independent drive slots without purchasing multiple enclosures. The push-tray mechanism simplifies drive swaps compared with screw-mounted carriers. Spare trays are sold separately in six-packs, and the unit requires a USB-C host port for full-speed connectivity.

How it compares

Measured against everything we stock in External Drive Enclosures, at today’s prices. Recalculated every night.

Price $106.99
Pricier than about 81% of the 821 comparable items (median $30.99).

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Specifications

Product
Brand nameYottamaster
Product linePS400C3
Model name4 Bay Hard Drive Enclosure
Part number6936761804530
Product colorSilver
Product typeHDD/SSD
Storage
Drive interface2.5 in & 3.5 in
Supported drivesWithout RAID
Bay count4 Bay
Max capacity per bayUp to 16 TB
Ports & slots
External connectionUSB 3.0 Type-C
Power
Power adapterYes
Power details12V2A
Size & build
Size2.5 in & 3.5 in
Main materialAluminum
Product dimensions12.09 × 9.29 × 7.32 in
Product weight6.93 lb (3.14 kg)
In the box
In the box1 × 5 Bay USB C Hard Drive Enclosure
1 × 12 V 6.5A Power Supply
1 X Screw Kit
1 X Data Cable
1 X User Manual
More details
Cooling fansYes

Other versions of this model

2 more in the same range

Questions about this item

How do I decide which drives to install to reach the 64 TB total?

The enclosure holds four 2.5" or 3.5" SATA drives; each bay accepts up to 16 TB, so four 16 TB drives give the full 64 TB capacity.

What transfer speed will I actually see over the USB 3.1 Gen1 Type‑C port?

The internal SATA III link runs at up to 6 Gbps, and the USB 3.1 Gen1 connection is rated at 5 Gbps, so real‑world throughput is limited by the slower USB link.

Does the USB 3.1 Gen1 Type‑C interface limit the 6 Gbps SATA III speed of the drives?

Yes, the USB 3.1 Gen1 connection caps at 5 Gbps, which is below the drives' native 6 Gbps SATA III ceiling.

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