Synology Inc.

Synology Certified Refurbished

Access Synology solutions in a cost-effective and environmentally responsible way. All certified refurbished products are put through extensive testing, comply with stringent quality standards, and come with a 2-year warranty.

More about Synology Certified Refurbished

High-speed connectivity for enterprise networks

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Throughput

Dual-port 10GbE SFP+

Flexibility

Optical SR, Optical LR, and DAC support

Compatibility

Purpose-built for Synology systems

Convenient, high performance networking

Break through network bandwidth bottlenecks with the dual-port E10G17-F2 10GbE SFP+ add-in card. Featuring CPU offloading, RDMA over Ethernet support¹, E10G17-F2 satisfies the demands for high-performance computing on your Synology server.

High performance storage systems

RackStation

RS1221RP+

Quad-core 2.2 GHz CPU
Scales up to 12 drives
Redundant power

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DiskStation

DS1821+

Quad-core 2.2 GHz CPU
Scales up to 18 drives
Built-in M.2 NVMe slots for SSD cache

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RackStation

RS3621RPxs

Intel® Xeon® 6-core processor
Scales up to 36 drives
Redundant power

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Notes: RDMA over Ethernet is supported on FS6400 / FS3017. Additional Synology server models may be supported in future DSM updates.

Hardware Specifications
General
General	Host Bus Interface	PCIe 3.0 and 2.0 compatible 8-lane or 4-lane auto-negotiation
	Bracket Height	Low Profile and Full Height
	Operating Temperature	5°C to 35°C (40°F to 95°F)
	Storage Temperature	-20°C to 60°C (-5°F to 140°F)
	Relative Humidity	5% to 95% RH
	Warranty	2 Years
	Notes	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Network
Network	IEEE Specification Compliance	CPU Offload (RDMA over Ethernet)* IEEE 802.3ad Link Aggregation IEEE 802.3ae 10Gbps Ethernet
	Data Transfer Rates	10 Gbps
	Network Operation Mode	Full Duplex
Compatibility
Applied Models
Applied Models	FS series:FS6400, FS3600, FS3400, FS3017, FS2017 SA series:SA3600, SA3400, SA3200D UC series:UC3200 21 series:RS4021xs+, RS3621xs+, RS3621RPxs, RS1221RP+, RS1221+, DS1821+, DS1621xs+, DS1621+ 20 series:RS820RP+, RS820+ 19 series:RS1619xs+, RS1219+, DS2419+II, DS2419+, DS1819+ 18 series:RS3618xs, RS2818RP+, RS2418RP+, RS2418+, RS818RP+, RS818+, DS3018xs, DS1618+ 17 series:RS18017xs+, RS4017xs+, RS3617xs+, RS3617RPxs, RS3617xs, DS3617xsII, DS1817+, DS1517+ 16 series:RS18016xs+ 15 series:RC18015xs+, DS3615xs 14 series:RS3614xs+, RS3614RPxs, RS3614xs 13 series:RS10613xs+, RS3413xs+ 12 series:RS3412RPxs, RS3412xs 11 series:RS3411RPxs, RS3411xs
	Notes	DSM version requirement: 6.0.2 or later version RDMA over Ethernet can only be supported on FS6400 and FS3017 via iSCSI protocol

Notes: Model specifications are subject to change without prior notice. The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.