UC3400 - Server SYNOLOGY - Free user manual and instructions

Product Type	Unified Controller Server
Brand	Synology
Model	UC3400
Processor	Intel Xeon D-1541 (per controller)
RAM	8 GB DDR4 ECC (per controller, expandable up to 64 GB)
Disk Bays	12 bays for 3.5" or 2.5" SAS drives
Network Ports	2 × 1GbE RJ-45 + 1 × 10GBase-T RJ-45 (per controller)
Expansion Ports	1 external SAS port (per controller) for RXD1219sas expansion units
PCIe Slot	1 × Gen3 x8 (per controller)
Dimensions (H × W × D)	88 × 430.5 × 692 mm (with feet: 88 × 482 × 724 mm)
Weight	19.7 kg
Power Supply	Redundant 500 W (2 modules), 100-240 V AC, 50/60 Hz
Operating Temperature	0 °C to 35 °C
Storage Temperature	-20 °C to 60 °C
Relative Humidity	5 % to 95 % RH
Certifications	FCC Class A, CE Class A, UKCA, BSMI Class A, EAC, VCCI, CCC, RCM, KC
Main Features	High Availability (HA) with dual controllers, centralized storage management, capacity expansion, RAID support, system monitoring
Maintenance and Cleaning	Disconnect before cleaning; use a damp cloth without chemicals; replace faulty fans and power supplies
Safety	ESD precautions, grounding, handle by edges, stable environment, restricted access
Spare Parts and Repairability	Fan 60×60×51 mm, 500 W power supply, disk trays (Type R7), controller module, RKS-02 rail kit – available via Synology

Frequently Asked Questions - UC3400 SYNOLOGY

How to start the Synology UC3400?

Plug in the power cords, connect a network cable to a LAN port, then press the power button on the front. To turn on both controllers, press the button; to turn off, hold it until a beep.

What types of drives are compatible with the UC3400?

The UC3400 accepts 3.5" or 2.5" SAS drives. Refer to the Synology Product Compatibility List for supported models.

How to expand the RAM on the UC3400?

Remove the top cover, insert Synology DDR4 ECC modules into the free slots. Verify the configuration in Control Panel > Info Center after installation.

How to add a PCIe network card?

Power off the device, remove the controller, open the cover, insert the card into the PCIe slot, then reassemble. Synology provides a list of compatible cards on its website.

What to do if the ALERT LED blinks orange?

It indicates a fan failure, overheating, or a degraded volume. Log in to DSM UC to identify the cause. Replace the faulty fan or correct the temperature issue.

How to connect an RXD1219sas expansion unit?

Use a mini-SAS HD cable to connect the SAS OUT port on the UC3400 to the SAS IN port on the unit. Plug in the expansion power cord. The UC3400 supports up to 2 expansion units.

How to reset the admin password?

Press the RESET button on the back until you hear a beep (mode 1). This restores IP, DNS, and default admin password. For a full reset, follow the mode 2 procedure.

What is the typical power consumption?

The power supply is 500 W redundant. Actual consumption depends on the load; it is typically below 200 W under normal operation.

How to replace a faulty fan?

Power off the device, remove the controller, locate the fan, lift it out, and insert a new one (ref. 60×60×51 mm). Ensure it is properly aligned.

Is the UC3400 compatible with DSM 7?

Yes, the UC3400 uses DSM UC (a special version for unified controllers). Updates are available via the Synology website. Check compatibility in the Knowledge Center.

USER MANUAL UC3400 SYNOLOGY

GARANTIE PRODUIT LIMITEE

LA PRESENTE TRADUCTION EST FOURNIE UNIQUÉMENT À TITRE D'INFORMATION. EN CAS DE VARIATION, LA VERSION ANGIAISE EST VALID.

CETTE GARANTIE LIMITÉE (« GARANTIE ») S'APPLIQUE AUX PRODUITS (DéFINIS CI-APRès) DE SYNOLOGY, INC. ET DE SES FILIALES, Y COMPRIS SYNOLOGY AMERICA CORP, (COLLECTIVEMENT, « SYNOLOGY »). VOUS ACCEPTÉZ ET RECONNAISSEZ VOUS SOUMETTRÉ AUX TERMES DE CETTE GARANTIE EN OUVRANT ET/OU EN UTILISANT L'EMBALLAGE CONTENANT LE PRODUIT. VEUILLEZ NOTER QUE CETTE GARANTIE LIMITÉE NE S'APPLIQUE PAS AU LOGICIEL CONTENU DANS LES PRODUITS QUI SERA SOUMIS À SON PROPRE CONTRAT DE LICENCE D'UTILISATEUR FINAL ET QUE SYNOLOGY SE RÉSERVE LE DROIT d'AJUSTER ET/OU DE MODIFIER LA PRESENTE GARANTIE PRODUIT DE TEMPS À AUTRE AINS AVIS PREALABLE. SI VOUS N'ÊTES PAS D'ACCORD AVEC LES TERMES DE CETTE GARANTIE, N'UTILISEZ PAS LE PRODUIT. AU LIEU DE CELA, VOUS POUVEZ RENVOYER LE PRODUIT AU REVENTEUR CHEZ QUI VOUS L'AVEZ ACHÉTE POUR VOUS FAIRE REMBOURSER, EN VERTU DE LA POLITIQUE DE RETOUR APPLICABLE AU REVENTEUR.

VEUILLEZ NOTER QUE LA PRISE EN CHARGE INCLUSE DANS LA GARANTIE DE SYNOLOGY N'EST PAS DISPONIBLE DANS TOUS LES PAYS ET QUE SYNOLOGY PEUT REFUSER DE VOUS FOURNIR CETTE PRISE EN CHARGE PAR LA GARANTIE LIMITEE SI VOUS FAITES UNE DEMANDE DE PRISE EN CHARGE DANS UN PAYS DIFFÉRÉNT DU PAYS DANS LEQUEL LE PRODUIT A ÉTÉ INITIALÉMMENT ACHÉTE. LE PAYS DANS LEQUEL LE PRODUIT A ÉTÉ INITIALÉMMENT ACHÉTE SERA DÉTERMINÉ EN FONCTION DES ARCHIVES INTERNES DE SYNOLOGY.

FCC Declaration of Conformity

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Declaration Letter of REACH & RoHS Compliance

About REACH

In June 2007, the European Union Regulation (EC) 1907/2006 concerning the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) was first released. Under this Regulation, manufacturers are required to gather information on the properties of their chemical substances, which will allow their safe handling, and to register the information to European Chemicals Agency (ECHA). The aim is to improve the protection of human health and the environment through the better and earlier identification of the intrinsic properties of chemical substances.

About RoHS

RoHS Directive (EU Directive 2002/95/EC) was issued in 2002, restricted the use of the six chemicals lead, cadmium, mercury, and hexavalent chromium, as well as flame retardants polybrominated biphenyls (PBBs) and polybrominated dipheny ethers (PBDEs). Under this directive, manufacturers are required to replace these chemicals in their products with less hazardous alternatives.

Then RoHS 2.0 (Directive 2011/65/EU) has replaced Directive 2002/95/EC since January 3, 2013. In 2015, EU commission publishes Directive (EU) 2015/863 to amend Annex II to EU RoHS 2 (Directive 2011/65/EU) to add 4 phthalates (DEHP, BBP, DBP and DIBP) onto the list of restricted substances from 22 July 2019.

REACH and RoHS Compliance

Synology meets all requirements of the REACH Regulation and is compliant to all implemented RoHS type regulations worldwide. To the best of Synology's knowledge, all Synology products in production (including finished

Synology

products, spare parts, and packaging materials) are in compliance with the requirements of the Regulation and/or Directives. Synology continues to monitor, influence, and develop our processes to comply with any proposed changes to the Regulation and/or Directives.