Best Memory cards for Sony a7V?

Just saw this thread and honestly everyone is hitting the speed stuff but nobody is talking about the physical fitment and hardware compatibility quirks that come with these newer Sony bodies... - **The "Lowest Common Denominator" Rule:** If you plan on shooting to both slots simultaneously for backup (which you should!), the camera's write speed is basically limited by the slowest card. If you put a super fast CFexpress in Slot 1 and a slow SD in Slot 2, you're totally losing the CFexpress advantage for bursts because the buffer won't clear until that slow SD finishes writing the backup file!!!
- **Thermal Dissipation:** One big technical plus for CFexpress Type A is how they handle heat. SD cards are mostly plastic and can get really hot during long 4K sessions, which sometimes triggers the camera's internal overheat sensors. CFexpress cards like the Lexar Professional CFexpress Type A Card GOLD Series or the Sabrent Rocket CFexpress Type A are built to sink heat much more efficiently.
- **Connector Reliability:** CFexpress uses a different pin layout that's way more durable than the exposed teeth on SD cards. I've had SD card ribs break off inside the slot before... it's a nightmare. If you're looking for other solid options, the Angelbird AV PRO SD MK2 V90 cards are built like tanks and have great fitment without the peeling issues some other brands have over time.

Yep, this is the way

Hey! For your situation, you *don’t* automatically need CFexpress Type A… but it depends on which modes you lean on.

For most 4K (even fairly high bitrate) and normal burst shooting, a good V60/V90 SDXC card is totally fine. I’ve had solid results with Sony TOUGH SF-G Series 128GB SDXC UHS-II V90 and SanDisk Extreme PRO 128GB SDXC UHS-II V90—fast, consistent, and they clear the buffer pretty quick.

Unfortunately, where SD cards annoyed me was long takes + heavy burst sessions: the camera feels “stuck” while the buffer dumps. CFexpress Type A basically fixes that. I’ve used Sony CFexpress Type A TOUGH 160GB Memory Card and it’s been rock-solid (and seriously fast), just… yeah, pricey.

IMO: start with V90 SD if budget matters, go CFexpress Type A if you hate waiting on buffer clears. What 4K settings/bitrate are you planning to shoot most?

Building on what was said about "Hey! For your situation, you *don’t* automatically need CFexpress Type...", I learned this the hard way on my A7S III: V60 SD was fine… until I hit higher bitrate/all‑I and long bursts, then the buffer/record limits got annoying. For most 4K + bursts, I’d go V90 like Sony TOUGH SF-G 128GB SDXC UHS-II V90 or ProGrade Digital 256GB SDXC UHS-II V90. CFexpress Type A (e.g. Sony CFexpress Type A TOUGH 160GB or ProGrade Digital 160GB CFexpress Type A ) is worth it if you want max burst clearing + the “no compromises” video modes. Just be careful with cheap UHS-II readers too.

For your situation, fast SD is enough 90% of the time—go Sony TOUGH SF-G Series 128GB SDXC UHS-II V90 or ProGrade Digital 256GB SDXC UHS-II V90; buy CFexpress A like Sony CFexpress Type A TOUGH 160GB only for top-bitrate/long bursts.

For your situation, I’d suggest thinking of it as 3 “tiers” depending on how hard you push the camera (and your wallet)… I’ve tried many cards over the years on Sony bodies and the pattern is pretty consistent.

**Option A: Good value SD (V60) — best bang for most people**
Pros: cheap-ish, reliable, fast enough for lots of 4K modes and everyday bursts.
Cons: can choke on the heaviest codecs / long buffer clears.
Cards I’ve had solid luck with: Sony TOUGH SF-G 128GB SDXC UHS-II V60 and SanDisk Extreme PRO 256GB SDXC UHS-II V60. If you’re doing “normal” 4K and occasional bursts, this tier is honestly fine.

**Option B: Fast SD (V90) — sweet spot if you hate waiting**
Pros: noticeably better sustained write, faster buffer clearing, still way cheaper than CFexpress A.
Cons: pricing jumps, and not every V90 is equal in sustained write.
Good ones: Sony TOUGH SF-G 128GB SDXC UHS-II V90 or ProGrade Digital 256GB SDXC UHS-II V90. This is what I run when I want speed but can’t justify CFexpress for every shoot.

**Option C: CFexpress Type A — “no compromises,” but $$$**
Pros: best sustained write + fastest buffer clear; great for high-bitrate video and long burst sessions.
Cons: cost per GB is painful.
If you go this route: Sony CFexpress Type A TOUGH 160GB Memory Card has been rock-solid for me.

Practical tip: I’d buy **one** CFexpress A (for “serious” days) and keep **V90 SD** as your daily driver. What 4K mode/codec do you shoot most (All-I vs Long GOP), and how long are your burst runs?

@User above mentioned "Hey! For your situation, you *don’t* automatically need CFexpress Type..." - totally agree. The big “safety” thing is matching the card to your *worst-case sustained write*, not peak numbers on the label.

**Why it matters:** video dropouts/corrupt clips usually happen when the card can’t hold sustained speed (or when it’s a fake/grey-market card). Bursts are mostly buffer-related, but long bursts + high bitrate video will expose weak cards.

**What I’d do (reliability-first):**
- For most 4K + bursts: a reputable V60/V90 SDXC. I’ve been happy with Sony TOUGH SF-G 128GB SDXC UHS-II V90 and ProGrade Digital 256GB SDXC UHS-II V90 (no complaints, consistent).
- If you do the heaviest codecs/long takes: CFexpress Type A is the “no drama” option, e.g. Sony CFexpress Type A TOUGH 160GB or ProGrade Digital CFexpress Type A 160GB.

Also: buy from legit retailers, and format in-camera every shoot. Hope this helps!

Hey! For your situation, I’d do Option A: 2x good V60/V90 SD cards (cheap + plenty fast). ProGrade Digital 256GB SDXC UHS-II V60 is usually ~$60–$80 and works well for most 4K + bursts, no complaints. Option B: V90 like Sony TOUGH SF-G Series 128GB SDXC UHS-II V90 (~$90–$130) if you push higher bitrate more often. Option C: CFexpress A only if you *know* you’ll hammer top modes… but it’s $$$ ($150–$250+). Hope this helps!

Building on what was said about "Hey! For your situation, you *don’t* automatically need CFexpress Type...", the vibe of this thread is: SD cards cover like 90% of real-world shooting, and CFexpress Type A is more of a “nice to have” for the heaviest modes.

Quick warning though: don’t cheap out or trust the flashy “300MB/s” marketing. What bites you long-term is sustained write speed + fakes. I’ve had random recording stops and weird file errors years ago just from using bargain cards / sketchy sellers… super frustrating.

Consensus picks people mentioned: solid UHS‑II V60/V90 SDXC like ProGrade Digital 256GB SDXC UHS-II V60 Memory Card or Sony TOUGH SF-G Series 128GB SDXC UHS-II V90 Memory Card. If you *know* you’ll live in top bitrate / all‑I / long burst buffer-clearing land, add one Sony CFexpress Type A TOUGH 160GB Memory Card.

Lesson learned: buy from legit retailers, and keep two matching “known good” cards as your baseline. Hope this helps!