4U hot-swappable, server case, OCS4650-H20-F, onechassis.com

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OCS4650-H20-F

4U storage chassis with 20 × hot-swap bays.

20 × hot-swap 3.5-inch / 2.5-inch drive bays
7 × full-height PCI expansion slots
3 × hot-swap 120 mm fans; rear fans optional
ATX / mini redundant PSU support; PSU not included

Please include your product model, required quantity, and any customization needs.

Overview Specifications

01 / OVERVIEW

Product overview

4U Hot-swap chassis, Server Chassis, Server Case, Rackmount storage chassis

The OCS4650-H20-F 4U Hot-swap chassis provides outstanding support for various rackmount systems and applications. Equipped with 3 × hot-swappable 120mm middle fans, it delivers powerful cooling performance to maintain system stability and prevent overheating. Additionally, the rear panel supports optional 2 × 80mm fans for enhanced airflow and thermal protection.

A spacious interior offers sufficient room to accommodate powerful hardware. This 4U Hot-swap chassis supports:

20 × 3.5″ (or 2.5″) hot-swap HDD bays
2 × external 3.5″ (or 2.5″) bays
1 × external 5.25″ bay
7 × full-height PCI expansion slots

This design provides flexible options for system expansion.

The chassis is engineered to meet the storage performance, scalability, affordability, and reliability requirements of medium to large data centers and high-performance applications. It is ideal for Software-Defined Storage, Big Data server chassis, Cloud Hosting workloads, Backup Servers, and Multimedia Servers.

Key Features:

Supports EATX / CEB / ATX / Micro-ATX / Mini-ITX motherboards
Supports ATX power supply and a mini redundant power supply
Durable SGCC steel construction
2 × USB 3.0 ports
20 × 3.5″ (or 2.5″) hot-swap HDD support
3 × hot-swappable 120mm middle fans
Optional 2 × 80mm rear fans
Power supply not included

02 / SPECIFICATIONS

Technical specifications

Please confirm the selected configuration and included components with our team before ordering.

Model	OCS4650-H20-F
Form Factor	4U Rackmount Server Case with 20 × Hot-Swappable SATA/SAS Drive Bay, MiniSAS /SATA connector
Material	Metal material	SGCC
	Metal thickness	1.2mm
	Panel material	Metal
	Handle material	Metal
M/B support	EEB (12″* 13″), microATX (9.6″* 9.6″), CEB (12″* 10.5″), ATX (12″* 9.6″), Mini-ITX (6.7″* 6.7″)
Size	D* W* H(mm)	650* 482* 176
Size	D* W* H(inch)	25.5 * 19* 7
Drive Bay	3.5 “or 2.5” external (hot-swap)	20 ×
	Slim CD Rom	1
	3.5 “or 2.5” external	2 ×
Power Supply support	ATX power supply / mini redundant power supply
Front panel	Control button	Power ON/OFF* 1, system reset* 1
	Indicator	Power ON/OFF* 1, HDD* 1, NETWORK* 3, Alarm* 1
	Ports	USB 2.0* 1 , USB3.0* 1
Expansion	Riser Slot	7 × (full size)
Hot-swap Backplane	S-ATA or SAS backplane (12Gbit / s max)
System cooling(optional)	Front	NO
	Middle	3 × 120mm fans PWM (hot-pluggable)
	Rear	2x 80mm (standard)
Net weight	15kg
Gross weight	18kg
Packing size	D* W* H(mm)	830* 555* 240
Packing size	D* W* H(inch)	32.7* 21.8* 9.4
Packing Material	Polyfoam with carton box
Environment Temperature	0/55 ℃, 32/131 ℉ (Operating) -20/60 ℃, -4/140 ℉ (Non-Operating)
Relative Humidity	5% to 95%, non-condensing