ASUS
ASUS ExpertCenter PN53
The ASUS ExpertCenter PN53 is a 0.9-liter business mini PC built on AMD Rembrandt (Zen 3+) H-series chips with RDNA2 Radeon 680M/660M graphics: Ryzen 5 6600H, Ryzen 7 6800H, Ryzen 9 6900HX, and the refreshed Ryzen 5 7535HS and Ryzen 7 7735HS. It uses DDR5-4800 (64 GB on 7035-series models, 32 GB on 6000-series per ASUS), one M.2 2280 PCIe 4.0 NVMe slot and a 7 mm 2.5-inch bay. It has 2.5 GbE, two USB4 Type-C ports (the rear one accepts power input), two HDMI 2.1 ports and a configurable rear port that can be VGA, serial, DisplayPort or HDMI. It's a capable Proxmox host or Jellyfin box with a strong iGPU, but ASUS lists no DASH or AMT-style remote management.
Good for
Badges come from the spec rules on each use page, not from guesswork.
Specs that matter used
- CPU generation
- AMD Ryzen 6000 / 7x35 (Rembrandt)
- CPU options
- Ryzen 7 7735HS, Ryzen 5 7535HS, Ryzen 9 6900HX, Ryzen 7 6800H, Ryzen 5 6600H
- Form factor
- NUC-class
- Memory
- DDR5-4800 SO-DIMM, 2 slots
- Max RAM (official)
- 64 GB — ASUS lists 64 GB (2×32 GB) for Ryzen 7035-series models and 32 GB (2×16 GB) for Ryzen 6000-series models.
- Storage
- 1× M.2 2280 PCIe 4.0 x4 NVMe + 1× 2.5-inch SATA bay (7 mm drives only)
- Ethernet
- 1 × 2.5 GbE (2.5 GbE (controller not named by ASUS). Rear configurable port: VGA, COM, DisplayPort 1.4 or HDMI 2.1)
- Wi-Fi
- Wi-Fi 6E or Wi-Fi 6 with Bluetooth 5.4, depending on configuration
- vPro / AMT
- No
- Cooling
- Fan-cooled
- Power adapter
- ASUS 19 V 6.32 A (120 W) barrel adapter
- Windows 11
- CPU generation is on Microsoft's supported list
Check before you buy
- Check the CPU: ASUS caps 6000-series models at 32 GB of RAM and 7035-series models at 64 GB.
- Use a 7 mm or thinner 2.5-inch drive, because the bay doesn't take 9.5 mm drives.
- Barebones units need DDR5-4800 SO-DIMMs; ASUS recommends two modules for dual-channel memory.
- Make sure the 120 W ASUS adapter is included.
General off-lease checks (BIOS passwords, Computrace, missing drive caddies) are in the used mini PC buying checklist.
On eBay
Find a ASUS ExpertCenter PN53
Search eBay for “ASUS PN53 ExpertCenter”. Off-lease units are listed in batches, often with the RAM, drive and power adapter in the title, so compare those before price. Use the checks on this page before you buy.
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