We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver aluminium drive cage with four trayless 3.5-inch bays and key locks

Silverstone Technology

Silverstone Technology FS304B-12G 4×3.5″ SAS-12G/SATA drive enclosure

SKU CH-0RWF-8Y4JN MPN FS304B-12G

Holds four 3.5″ SAS-12G/SATA drives in three 5.25″ bays with trayless hot-swap, individual key locks and adjustable fan control

  • TypeAccessories
  • Fits four 3.5" drives in three 5.25" bays
  • Trayless hot-swap design enables tool-free drive changes
  • Individual key locks secure each drive independently
  • Aluminium body with built-in fan dissipates heat effectively
  • Adjustable LED and fan controls let you monitor status quietly

Drive density and interface

This enclosure fits four 3.5-inch SAS-12G or SATA 6Gbit/s drives into three 5.25-inch device bays. It is built for administrators who need high-density hot-swap storage in a standard server or workstation chassis. The all-aluminium body and built-in fan keep drives cool under continuous operation.

Lockable trayless bays

The screwless trayless mechanism lets you insert or remove drives in seconds while the system stays online. Each bay has an independent metal key lock and status LED for physical security and quick health checks. Builders who need tool-free installation and per-drive locking will value this design. Systems without three adjacent 5.25-inch bays cannot accommodate the unit.

SAS-12G and SATA 6Gbit/s support

The backplane connects each drive at up to 12 Gbit/s for SAS or 6 Gbit/s for SATA, matching the speed of modern enterprise drives. Adjustable fan control and drive LEDs are managed from the front panel. Choose this cage when your controller and drives use SAS-12G or SATA 6Gbit/s interfaces.

Highlights

  • Fits four 3.5" drives in three 5.25" bays
  • Trayless hot-swap design enables tool-free drive changes
  • Individual key locks secure each drive independently
  • Aluminium body with built-in fan dissipates heat effectively
  • Adjustable LED and fan controls let you monitor status quietly

Specifications

TypeAccessories
Shipping weight1.81 kg
Package size203 × 152 × 127 mm

Questions about this item

How many 3.5" drives does the FS304B-12G hold in three 5.25" bays?

The enclosure fits four 3.5" SAS or SATA drives across three standard 5.25" device bays, using a trayless and screwless mechanism for quick installation.

What real-world throughput can I expect from the SAS-12G and SATA 6Gbit/s interfaces?

Each drive bay supports SAS at 12 Gbit/s and SATA at 6 Gbit/s, so actual transfer speed will match the drive's own rating up to those interface limits.

Does the cage use a single backplane connector or one per drive for SAS-12G and SATA?

The unit provides independent connections for each of the four bays, allowing every drive to run at its full SAS-12G or SATA 6Gbit/s rate without sharing bandwidth.

New to this? Paying with USDT: TRC-20 or ERC-20 — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.