CPU CPU Model AMD Ryzen V1500B CPU Quantity 1 CPU Architecture 64-bit CPU Frequency 4-core 2.2 GHz Hardware Encryption Engine (AES-NI) Memory System Memory 4 GB DDR4 ECC SODIMM Memory Module Pre-installed 4 GB (4 GB x 1) Total Memory Slots 2 Maximum Memory Capacity 32 GB (16 GB x 2) Notes Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance. Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. For more information about the recommended memory configurations, please check the Hardware Installation Guide of your Synology product. Storage Drive Bays 6 Maximum Drive Bays with Expansion Unit 16 (DX517 x 2) M.2 Drive Slots 2 (NVMe) Compatible Drive Type* (See all supported drives) 3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD M.2 2280 NVMe SSD Hot Swappable Drive* Notes The hot swappable drive feature is not supported by M.2 SSD slots. "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. External Ports RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support) USB 3.2 Gen 1 Port* 3 eSATA Port 2 Notes The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. PCIe PCIe Expansion 1 x Gen3 x8 slot (x4 link) Appearance Size (Height x Width x Depth) 166 mm x 282 mm x 243 mm Weight 5.1 kg Others System Fan 92 mm x 92 mm x 2 pcs Fan Speed Mode Full-Speed Mode Cool Mode Quiet Mode Easy Replacement System Fan Brightness Adjustable Front LED Indicators Power Recovery Noise Level* 25.2 dB(A) Scheduled Power On / Off Wake on LAN / WAN Power Supply Unit / Adapter 250 W AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption 51.22 W (Access)25.27 W (HDD Hibernation) British Thermal Unit 174.77 BTU/hr (Access)86.22 BTU/hr (HDD Hibernation) Notes Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s). Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% Temperature Operating Temperature 0°C to 40°C (32°F to 104°F) Storage Temperature -20°C to 60°C (-5°F to 140°F) Relative Humidity 5% to 95% RH Certification FCC CE BSMI EAC CCC KC VCCI RCM Environment RoHS Compliant Packaging Content Main Unit X 1 Accessory Pack X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2 Quick Installation Guide X 1 Optional Accessories DDR4 ECC SODIMM: D4ES01-4G/D4ES01-8G/D4ECSO-2666-16G Expansion Units: DX517 Enterprise Series 3.5" SATA HDD: HAT5300 Series Plus Series 3.5" SATA HDD: HAT3300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series Enterprise Series M.2 2280 NVMe SSD: SNV3400 Series 25GbE Network Interface Card: E25G30-F2 10GbE Network Interface Card: E10G21-F2/E10G30-T2/E10G18-T1

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Hardware Specifications CPU CPU Model AMD Ryzen V1500B CPU Quantity 1 CPU Core 4 CPU Architecture 64-bit CPU Frequency 2.2 GHz Hardware Encryption Engine Memory System Memory 4 GB DDR4 ECC SODIMM Memory Module Pre-installed 4 GB (4 GB x 1) Total Memory Slots 2 Maximum Memory Capacity 32 GB (16 GB x 2) Notes Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance. Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations. Storage Drive Bays 4 Maximum Drive Bays with Expansion Unit 9 (DX525 x 1) M.2 Drive Slots 2 (NVMe) Drive Type (See all supported drives) 3.5" SATA HDD 2.5" SATA SSD M.2 2280 NVMe SSD Hot Swappable Drive* Notes The hot swappable drive feature is not supported by M.2 SSD slots. Compatible drives are mandatory. Please consult our compatibility list before purchasing hard drives. For more details, please refer to this article. External Ports RJ-45 2.5GbE LAN Port 2 USB 3.2 Gen 1 Port 2 Expansion Port 1 Expansion Port Type USB Type-C Appearance Size (Height x Width x Depth) 166 mm x 199 mm x 223 mm Weight 2.26 kg Others System Fan 92 mm x 92 mm x 2 pcs Fan Speed Mode Full-Speed Mode Cool Mode Quiet Mode Brightness Adjustable Front LED Indicators Power Recovery Noise Level* 20.5 dB(A) Scheduled Power On / Off Wake on LAN / WAN Power Supply Unit / Adapter 100 watts AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption* 37.91 watts (Access)12.33 watts (HDD Hibernation) British Thermal Unit 129.27 BTU/hr (Access)42.05 BTU/hr (HDD Hibernation) Notes For more information on how power consumption is measured, refer to this article. Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle state. Two G.R.A.S. Type 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% Temperature Operating Temperature 0°C to 40°C (32°F to 104°F) Storage Temperature -20°C to 60°C (-5°F to 140°F) Relative Humidity 5% to 95% RH Certification FCC CE BSMI VCCI RCM UKCA EAC CCC KC BIS Warranty 3-year hardware warranty, extendable to 5 years with EW201 or Extended Warranty Plus Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) Extended Warranty Plus is only available in Europe and North America. EW201/EW202 is only available in Asia, Africa, and Oceania. For exact availability information please visit their respective websites. Environment RoHS Compliant Packaging Content Main Unit X 1 Accessory Pack X 1 AC Power Adapter X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2 Optional Accessories DDR4 ECC SODIMM: D4ES04-4G/D4ES03-8G/D4ES03-16G Expansion Units: DX525 Enterprise Series 3.5" SATA HDD: HAT5300 Series Plus Series 3.5" SATA HDD: HAT3300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series Enterprise Series M.2 2280 NVMe SSD: SNV3400 & SNV5400 Series Notes For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.

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Hardware Specifications CPU CPU Model Realtek RTD1619B CPU Quantity 1 CPU Core 4 CPU Architecture 64-bit CPU Frequency 1.7 GHz Hardware Encryption Engine Memory System Memory 2 GB DDR4 non-ECC Notes Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance. Storage Drive Bays 2 Compatible Drive Type* (See all supported drives) 3.5" SATA HDD 2.5" SATA SSD Hot Swappable Drive* Notes "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. External Ports RJ-45 1GbE LAN Port 1 USB 3.2 Gen 1 Port* 3 USB Copy Notes This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes. The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. Appearance Size (Height x Width x Depth) 165 mm x 108 mm x 232.7 mm Weight 1.28 kg Others System Fan 92 mm x 92 mm x 1 pcs Fan Speed Mode Full-Speed Mode Cool Mode Quiet Mode Brightness Adjustable Front LED Indicators Power Recovery Noise Level* 14.6 dB(A) Scheduled Power On / Off Wake on LAN / WAN Power Supply Unit / Adapter 60 watts AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption 17.343 watts (Access)4.08 watts (HDD Hibernation) British Thermal Unit 59.19 BTU/hr (Access)13.92 BTU/hr (HDD Hibernation) Notes For more information on how power consumption is measured, refer to this article. Noise testing was conducted with the Synology system fully installed with Synology SATA SSDs and in an idle state. Two G.R.A.S. type 40AE microphones were placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%. Temperature Operating Temperature 0°C to 40°C (32°F to 104°F) Storage Temperature -20°C to 60°C (-5°F to 140°F) Relative Humidity 5% to 95% RH

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CPU CPU Model Realtek RTD1619B CPU Quantity 1 CPU Architecture 64-bit CPU Frequency 4-core 1.7 GHz Hardware Encryption Engine Memory System Memory 1 GB DDR4 non-ECC Notes Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance. Storage Drive Bays 1 Compatible Drive Type* (See all supported drives) 3.5" SATA HDD 2.5" SATA SSD (with optional 2.5" Disk Holder) Hot Swappable Drive* - Notes "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. External Ports RJ-45 1GbE LAN Port 1 USB 3.2 Gen 1 Port* 2 Notes This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes. The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. Appearance Size (Height x Width x Depth) 166 mm x 71 mm x 224 mm Weight 0.7 kg Others System Fan 60 mm x 60 mm x 1 pcs Fan Speed Mode Full-Speed Mode Cool Mode Quiet Mode Low-power Mode Brightness Adjustable Front LED Indicators Power Recovery Noise Level* 19.0 dB(A) Scheduled Power On / Off Wake on LAN / WAN Power Supply Unit / Adapter 36 W AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption 10.69 W (Access)3.44 W (HDD Hibernation) British Thermal Unit 36.50 BTU/hr (Access)11.75 BTU/hr (HDD Hibernation) Notes For more information on how power consumption is measured, refer to this article. Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle state. Two GRAS 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% Temperature Operating Temperature 0°C to 40°C (32°F to 104°F) Storage Temperature -20°C to 60°C (-5°F to 140°F) Relative Humidity 5% to 95% RH Certification FCC CE BSMI VCCI RCM UKCA EAC CCC KC Environment RoHS Compliant Packaging Content Main Unit X 1 Accessory Pack X 1 AC Power Adapter X 1 RJ-45 LAN Cable X 1 Quick Installation Guide X 1 Optional Accessories Plus Series 3.5" SATA HDD: HAT3300 Series

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Specifications Component  Specification CPU Intel Celeron J4125, 4-core, 2.0 GHz base / 2.7 GHz turbo Memory 2GB DDR4 (expandable up to 6GB) Drive Bays 4 x 3.5"/2.5" SATA M.2 Slots 2 x M.2 2280 NVMe (for cache) Network 2 x 1GbE RJ-45 LAN ports (with link aggregation and failover) USB Ports 2 x USB 3.2 Gen 1 Hot-swappable drives Yes (for SATA drives) Operating System Synology DiskStation Manager (DSM) Power Consumption 28.3 W (Access), 8.45 W (HDD Hibernation) Dimensions 166 x 199 x 223 mm Weight 2.18 kg Warranty 3 years (extendable)

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CPU CPU Model AMD Ryzen R1600 CPU Quantity 1 CPU Architecture 64-bit CPU Frequency 2-core 2.6 (base) / 3.1 (turbo) GHz Hardware Encryption Engine (AES-NI) Memory System Memory 2 GB DDR4 ECC SODIMM Memory Module Pre-installed 2 GB (2 GB x 1) Total Memory Slots 2 Maximum Memory Capacity 32 GB (16 GB x 2) Notes Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance. Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. For more information about the recommended memory configurations, please check the Hardware Installation Guide of your Synology product. Storage Drive Bays 2 Maximum Drive Bays with Expansion Unit 7 (DX517 x 1) M.2 Drive Slots 2 (NVMe) Compatible Drive Type* (See all supported drives) 3.5" SATA HDD 2.5" SATA SSD M.2 2280 NVMe SSD Hot Swappable Drive* Notes The hot swappable drive feature is not supported by M.2 SSD slots. "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. External Ports RJ-45 1GbE LAN Port 2 (with Link Aggregation / Failover support) USB 3.2 Gen 1 Port* 1 eSATA Port 1 Notes This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes. The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. PCIe PCIe Expansion 1 x Gen3 x2 network upgrade slot Appearance Size (Height x Width x Depth) 166 mm x 106 mm x 223 mm Weight 1.51 kg Others System Fan 92 mm x 92 mm x 1 pcs Fan Speed Mode Full-Speed Mode Cool Mode Quiet Mode Brightness Adjustable Front LED Indicators Power Recovery Noise Level* 20.7 dB(A) Scheduled Power On / Off Wake on LAN / WAN Power Supply Unit / Adapter 65 W AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption 21.07 W (Access)8.62 W (HDD Hibernation) British Thermal Unit 71.85 BTU/hr (Access)29.39 BTU/hr (HDD Hibernation) Notes For more information on how power consumption is measured, refer to this article. Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle state. Two GRAS 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% Temperature Operating Temperature 0°C to 40°C (32°F to 104°F) Storage Temperature -20°C to 60°C (-5°F to 140°F) Relative Humidity 5% to 95% RH Certification FCC CE BSMI VCCI RCM UKCA EAC CCC KC Environment RoHS Compliant Packaging Content Main Unit X 1 Accessory Pack X 1 AC Power Adapter X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2 Quick Installation Guide X 1 Optional Accessories DDR4 ECC SODIMM: D4ES02-4G/D4ES02-8G/D4ES01-16G Expansion Units: DX517 Enterprise Series 3.5" SATA HDD: HAT5300 Series Plus Series 3.5" SATA HDD: HAT3300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series Enterprise Series M.2 2280 NVMe SSD: SNV3400 Series 10GbE Network Upgrade Module: E10G22-T1-Mini

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CPU CPU Model Intel Celeron J4125 CPU Quantity 1 CPU Architecture 64-bit CPU Frequency 4-core 2.0 (base) / 2.7 (burst) GHz Hardware Encryption Engine (AES-NI) Memory System Memory 2 GB DDR4 non-ECC Total Memory Slots 1 Maximum Memory Capacity 6 GB (2 GB + 4 GB) Notes Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance. Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. For more information about the recommended memory configurations, please check the Hardware Installation Guide of your Synology product. Storage Drive Bays 4 M.2 Drive Slots 2 (NVMe) Compatible Drive Type* (See all supported drives) 3.5" SATA HDD 2.5" SATA SSD M.2 2280 NVMe SSD Hot Swappable Drive* Notes The hot swappable drive feature is not supported by M.2 SSD slots. "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. External Ports RJ-45 1GbE LAN Port 2 (with Link Aggregation / Failover support) USB 3.2 Gen 1 Port* 2 Notes This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes. The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. Appearance Size (Height x Width x Depth) 166 mm x 199 mm x 223 mm Weight 2.18 kg Others System Fan 92 mm x 92 mm x 2 pcs Fan Speed Mode Full-Speed Mode Cool Mode Quiet Mode Brightness Adjustable Front LED Indicators Power Recovery Noise Level* 19.8 dB(A) Scheduled Power On / Off Wake on LAN / WAN Power Supply Unit / Adapter 90 W AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption 28.3 W (Access)8.45 W (HDD Hibernation) British Thermal Unit 96.5 BTU/hr (Access)28.81 BTU/hr (HDD Hibernation) Notes For more information on how power consumption is measured, refer to this article. Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle state. Two GRAS 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% Temperature Operating Temperature 0°C to 40°C (32°F to 104°F) Storage Temperature -20°C to 60°C (-5°F to 140°F) Relative Humidity 5% to 95% RH Certification FCC CE BSMI VCCI RCM UKCA EAC CCC KC Environment RoHS Compliant Packaging Content Main Unit X 1 Accessory Pack X 1 AC Power Adapter X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2 Quick Installation Guide X 1 Optional Accessories DDR4 non-ECC SODIMM: D4NESO-2666-4G Enterprise Series 3.5" SATA HDD: HAT5300 Series Plus Series 3.5" SATA HDD: HAT3300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series Enterprise Series M.2 2280 NVMe SSD: SNV3400 Series

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Feature / Category Specification / Details Notes / Additional Info CPU Model Intel Celeron J4125 — CPU Quantity 1 — CPU Core 4 — CPU Architecture 64-bit — CPU Frequency 2.0 GHz (base) / 2.7 GHz (turbo) — Hardware Encryption Engine — — System Memory 2 GB DDR4 non-ECC — Total Memory Slots 1 — Maximum Memory Capacity 6 GB (2 GB + 4 GB) — Memory Notes — Synology recommends Synology memory only for full support and warranty Drive Bays 4 — M.2 Drive Slots 2 (NVMe) — Supported Drive Types 3.5" SATA HDD, 2.5" SATA SSD, M.2 2280 NVMe SSD — Hot Swappable Drives Yes (only for SATA, not for M.2 SSDs) — Drive Compatibility Notes — Use Synology’s compatibility list before purchase 1GbE LAN Port (RJ-45) 1 — 2.5GbE LAN Port (RJ-45) 1 — USB 3.2 Gen 1 Ports 2 — LAN Notes — 1GbE LAN ports MTU: 1,500 bytes Size (H x W x D) 166 mm x 199 mm x 223 mm — Weight 2.18 kg — System Fans 2 × 92 mm — Fan Modes Full-Speed, Cool, Quiet — LED Brightness Adjustment Yes — Power Recovery Yes — Noise Level 21.6 dB(A) — Scheduled Power On/Off Yes — Wake on LAN/WAN Yes — Power Adapter 90 watts — AC Input Voltage 100V to 240V AC — Power Frequency 50/60 Hz, Single Phase — Power Consumption (Access) 28.25 watts — Power Consumption (Hibernation) 6.10 watts — BTU (Access) 96.33 BTU/hr — BTU (Hibernation) 20.79 BTU/hr — Power & Noise Notes — Measured with Synology SATA SSDs; tested under controlled conditions Operating Temperature 0°C to 40°C (32°F to 104°F) — Storage Temperature -20°C to 60°C (-5°F to 140°F) — Operating Humidity 8% to 80% RH — Storage Humidity 5% to 95% RH — Certifications FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS — Environment Compliance RoHS Compliant — Package Contents Main Unit ×1, Accessory Pack ×1, AC Adapter ×1, Power Cord ×1, LAN Cable ×2 — Optional Accessories D4NS01-4G, HAT5300 Series, HAT3300 Series, SAT5200 Series, SNV3400/SNV5400 —

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Specifications CPU: Intel Celeron J4125 Quad-Core Processor  (2.0 GHz base, 2.7 GHz burst)  Memory: 2 GB DDR4 RAM  (expandable with 1 slot for up to 4 GB)  Drive Bays: 2 x 2.5"/3.5" SATA III (Hot-Swap)  Networking: 1 x 2.5GbE LAN port, 1 x Gigabit Ethernet LAN port  Ports: 2 x USB-A 3.0 / 3.1/3.2 Gen 1  RAID Support: RAID 0, 1, JBOD, Basic, and Synology Hybrid RAID (SHR)  Key Features Fast Networking: Features a 2.5GbE port for quicker data transfers.  Expandable Memory: While it ships with 2GB, there's an available slot to add more RAM for improved performance.  Hot-Swap Drives: Allows for easy replacement or addition of drives without powering down the system.  Hardware Encryption: Includes AES-NI for hardware-accelerated data encryption.  Compact Design: A compact, 2-bay NAS suitable for homes and edge storage scenarios. 

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