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QNAP has introduced the TVS-hx77AX series, a new line of desktop ZFS NAS systems combining AMD Ryzen 7000 series processors with DDR5 memory, U.2 NVMe storage, and NFS over RDMA support. The family includes the 16-bay TVS-h1677AX, 12-bay TVS-h1277AX, and 8-bay TVS-h877AX, and QNAP is aiming all three at video collaboration, virtualization, and small-scale AI work rather than the home NAS market. All three systems run QuTS hero and ship with 16GB of DDR5 memory, expandable to 192GB across four UDIMM slots with optional ECC support. QNAP’s spec sheet lists the processor as a six-core, 12-thread Ryzen 5 7000 series part with a 5.1GHz boost clock, and the product page identifies it as the Ryzen 5 PRO 7645. Networking includes two 10GBASE-T and two 2.5GbE ports, while three PCIe Gen 4 slots can accommodate additional network adapters or discrete GPUs. QNAP supports 25GbE expansion through an optional adapter, which is also the path to NFS over RDMA with a compatible SmartNIC. The storage configuration changes with each model: The TVS-h1677AX combines twelve 3.5-inch SATA bays with four U.2 NVMe slots, the TVS-h1277AX has eight SATA bays and four U.2 slots, and the smaller TVS-h877AX uses six SATA bays and two U.2 slots. QNAP TVS-h1677AX, TVS-h1277AX, TVS-h877AX Specifications QNAP TVS-h1677AX The TVS-h1677AX is the largest system in the series, with twelve 3.5-inch SATA bays and four 2.5-inch U.2 NVMe slots for a total of 16 drive bays. Each U.2 slot uses a PCIe Gen 4 x2 interface and supports compatible PCIe Gen 4 and Gen 5 U.2 SSDs. SATA bays also support 2.5-inch SATA SSDs. One operational note from QNAP’s spec sheet: a U.2 SSD can only be hot-swapped if it was installed before the system booted, so a drive added while the NAS is running needs a shutdown to be replaced later. Expansion comes through three PCIe Gen 4 slots. The primary slot can operate at x8 when the adjacent slot is unused, or x4 when both are populated, while the remaining slots operate at x4. QNAP also includes a 500W power supply with an 8-pin 6+2 PCIe power cable for a discrete GPU. The TVS-h1677AX measures 294.3 x 369.9 x 319.8mm, weighs 10.98kg, and is cooled by three 80mm system fans plus two 60mm CPU fans. QNAP TVS-h1277AX The TVS-h1277AX reduces the SATA count to eight bays while retaining the same four U.2 PCIe Gen 4 x2 slots as the larger model. It therefore provides 12 total drive bays while keeping the same 192GB maximum DDR5 memory capacity, dual 10GBASE-T ports, dual 2.5GbE ports, and three PCIe Gen 4 expansion slots. Its shorter chassis measures 225.2 x 369.9 x 319.8mm. QNAP lists typical operating power consumption at 106.38W with the drives fully populated, compared with 164.03W for the larger TVS-h1677AX under the same stated test condition. Both use 500W power supplies. QNAP TVS-h877AX The TVS-h877AX is the smallest member of the family, combining six 3.5-inch SATA bays with two U.2 NVMe bays. Its U.2 interfaces run at PCIe Gen 4 x4, compared with the four Gen 4 x2 U.2 slots used by the TVS-h1277AX and TVS-h1677AX, so each of its two NVMe drives gets twice the lanes. The smaller chassis measures 225 x 292.9 x 319.8mm and weighs 8.88kg, with two 80mm system fans instead of three. QNAP’s typical operating figure for it is 105.12W with drives populated. It retains the same dual 10GBASE-T and dual 2.5GbE networking configuration, three PCIe Gen 4 expansion slots, 192GB maximum memory capacity, and 500W power supply as the larger systems. NFS over RDMA and 25GbE Expansion NFS over RDMA is a major addition to the TVS-hx77AX series; instead of moving NFS traffic through the conventional CPU networking path, RDMA permits direct memory access between systems, reducing CPU involvement in data transfers. QNAP is targeting the feature at AI training, virtualization, and high-resolution video workflows, and says its reference configuration sustained more than five simultaneous ProRes 4444 4K streams. The feature needs QTS 5.2.6 or QuTS hero h5.2.6 or later, and QNAP recommends pairing it with a RoCE-capable card. The TVS-hx77AX series includes dual 10GBASE-T and dual 2.5GbE ports, while 25GbE connectivity can be added through a compatible PCIe adapter. QNAP’s NFS over RDMA configuration uses its QXG-25G2SF-BCM 25GbE SmartNIC. The three PCIe Gen 4 expansion slots can also accommodate additional network adapters or discrete graphics cards, giving the systems room for higher-speed networking or GPU acceleration. GPU passthrough is supported as well, allowing compatible graphics hardware to be assigned directly to virtual machines. QNAP has published lab figures for the TVS-h1677AX with the network slots filled: 12,174MB/s sequential read and 11,065MB/s sequential write over SMB, and 1,140,212 random read IOPS and 782,483 random write IOPS over iSCSI, each across six 25GbE ports. Those are QNAP’s numbers, not ours, and the test system was upgraded to 64GB of memory with three QXG-25G2SF-CX6 adapters, four Samsung PM9A3 U.2 SSDs, and twelve SATA SSDs in RAID 5, so it does not represent the 16GB, HDD-populated configuration most buyers will start with. Hybrid Storage and QuTS hero The TVS-hx77AX series runs QNAP’s ZFS-based QuTS hero operating system, now at QuTS hero h6.0. Its hybrid drive layout combines high-capacity SATA storage with dedicated U.2 NVMe slots, and the pairing is meant for Qtier for QuTS hero, the tiering feature that moves active data to the NVMe tier and cold data to hard drives. Qtier requires h6.0, and QNAP’s product page still lists it as upcoming for this series, so buyers should treat automatic tiering as a pending feature rather than a day-one one. QuTS hero h6.0 also brings immutable snapshots, ZFS self-healing, and High Availability Manager, which clusters two identical NAS units with one active and one passive for failover and a recovery time objective QNAP puts under 60 seconds. We tested that failover on a pair of TS-h765eU units last month and covered the process on video, and a matched pair of TVS-hx77AX systems would work the same way. Qsirch adds AI-assisted enterprise search with Retrieval-Augmented Generation support, which can connect with cloud or on-premises large language models and use natural-language queries to search content stored on the NAS. QNAP TVS-hx77AX Availability The TVS-hx77AX gives QNAP three desktop ZFS configurations sharing the same Ryzen 7000, DDR5, networking, and PCIe foundation while varying the SATA and U.2 storage layout. The TVS-h1677AX provides the highest drive count, the TVS-h1277AX retains four U.2 slots in a smaller chassis, and the TVS-h877AX reduces the overall bay count while using PCIe Gen 4 x4 for its two U.2 slots. All three models are available now with a five-year standard warranty, sold as the TVS-h1677AX-R5-16G, TVS-h1277AX-R5-16G, and TVS-h877AX-R5-16G.
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