Thiết bị lưu trữ NAS Synology RS2421+
| Products | RS2421+ | 
| CPU | AMD RyzenTM V1500B quad-core 2.2 GHz | 
| Hardware Encryption Engine (AES-NI) | ✔ | 
| Memory | 4 GB DDR4 ECC UDIMM (expandable up to 32 GB) | 
| Compatible drive type | 12 x 3.5" or 2.5" SATA HDD/SSD Only Synology SAT5200 2.5" or Synology SNV3400/3500 M.2 SSDs can be used for SSD cache  | 
		
| Hot Swappable Drive | ✔ | 
| External Ports | 2 x USB 3.2 Gen 1 ports 1 x Expansion port  | 
		
| Form factor | Rackmount 2U | 
| Size (HxWxD) | 88 x 482 x 552 mm | 
| Weight | 11.5kg | 
| Rack installation support | 4-post 19" rack | 
| LAN ports | 4 x 1GbE RJ-45 | 
| PCIe 3.0 slot | 1 x 4-lane x8 slot Supports network interface cards2 and M.2 NVMe SSD adapter cards for SSD cache  | 
		
| System fan | 3 x (60 x 60 x 38 mm) | 
| AC input power voltage | 100V to 240V AC | 
| Operating temperature | 0°C to 35°C (32°F to 95°F) | 
| Storage temperature | -20°C to 60°C (-5°F to 140°F) | 
| Relative humidity | 5% to 95% RH | 
| Certifation | FCC, CE, BSMI, EAC, CCC, KC, UL, VCCI, RCM | 
| Optional Accessories | ● DDR4 ECC UDIMM: D4EU01-4G/D4EC-2666-8G/D4EC-2666-16G ● Expansion Units: RX1217 / RX1217RP ● 3.5" SATA HDD: HAT5300 ● 2.5" SATA SSD: SAT5200 ● M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1 ● M.2 SSD Adapter Card: M2D20 ● 25GbE Network Interface Card: E25G21-F2 ●10GbE Network Interface Card: E10G21-F2/E10G18-T2/E10G18-T1 ● Rail Kit Sliding: RKS1317 ● VisualStation: VS960HD/VS360HD ● Surveillance Device License Pack  | 
		
Data sheet Synology RackStation RS2421+
| DSM Specifications | |
| Storage Management | |
| Maximum Internal Volume Number | 64 | 
| SSD Read / Write Cache | ✔ | 
| SSD TRIM | ✔ | 
| Supported RAID Type | Synology Hybrid RAID Basic JBOD RAID 0, 1, 5, 6, 10  | 
		
| RAID Migration | Basic to RAID 1 Basic to RAID 5 RAID 1 to RAID 5 RAID 5 to RAID 6  | 
		
| Volume Expansion with Larger HDDs | Synology Hybrid RAID RAID 0, 1, 5, 6, 10  | 
		
| Volume Expansion by Adding a HDD | Synology Hybrid RAID JBOD RAID 5 RAID 6 (with Expansion Unit)  | 
		
| Global Hot Spare Supported RAID Type | Synology Hybrid RAID RAID 1, 5 RAID 6, 10 (with Expansion Unit)  | 
		
| File Services | |
| File Protocol | SMB/AFP/NFS/FTP/WebDAV | 
| Maximum Concurrent SMB/AFP/FTP Connections | 1,000 | 
| Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion) | 2.000 | 
| Windows Access Control List (ACL) Integration | ✔ | 
| NFS Kerberos Authentication | ✔ | 
| Account & Shared Folder | |
| Maximum Local User Accounts | 2,048 | 
| Maximum Local Groups | 256 | 
| Maximum Shared Folder | 512 | 
| Maximum Shared Folder Sync Task | 16 | 
| High Availability | |
| Synology High Availability | ✔ | 
| Log Center | |
| Syslog Events per Second | 1,000 | 
| Virtualization | |
| VMware vSphere with VAAI | ✔ | 
| Windows Server 2016/2019 | ✔ | 
| Citrix Ready | ✔ | 
| OpenStack | ✔ | 
| General Specifications | |
| Networking Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV | 
| Supported Browsers | Google Chrome, Firefox, Microsoft Edge, Safari | 
| Supported Language | English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 | 
| Antivirus by McAfee (Trial) | ✔ | 
| Central Management System | ✔ | 
| Synology Chat | |
| Maximum User | 1,500 | 
| Document Viewer | ✔ | 
| Download Station | |
| Maximum Concurrent Download Tasks | ✔ | 
| SAN Manager | |
| Maximum iSCSI Target Number | 128 | 
| Maximum LUN | 256 | 
| LUN Clone/Snapshot, Windows ODX | ✔ | 
| Synology Office | |
| Maximum Users | 1,800 | 
| VPN Server | |
| Maximum Connections | 30 | 
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